What videogames do you want to see sequels for the most?
Personally:
#1 Super Mario Sunshine 2
Released on either the Nintendo Switch or the next console they release after. I want superb graphical fidelity here (think Mario Kart 8), with emphasis on water physics, heat distortion effects, and lush vibrant environments to explore. I want hub areas with vastly expanded scope; allowing the player to find the entrances to secret levels in many different areas. A new Defino Plaza -esque hub area with a large focus on festivity, brimming with life; piantas dancing about, confetti flying in the air, people juggling fruits, a whole big "bazaar" type street facilitating these aforementioned activities, etc. A completely fleshed out underground area which you can travel to various different spots by entering manholes from the ground level. The underground areas resembling something like a huge sewage system with pipes and darkness pervading the entire area. A large focus on platforming and bottomless abysses to cross would be essential in this locale.
Many more maps with perhaps a select few returning from the original with extra details and sections that were not present before. More FLUDD nozzle variations allowing for even more complex and high risk open ended platforimng gameplay. Huge "collect-a-thon" overall, with many different McGuffins that all function in unique ways (perhaps some allow the player to unlock a 2nd level of performance for each nozzle variation, or bring back the blue coin exchange for Shrine Sprites, something along those lines =^.^= )
#2 The Legend of Zelda: The Wind Waker 2 (probably a different title lol)
A quest following the ending of Wind Waker's story. Something happens to both Link and Zelda, and Link's little sister, Aryll, takes it upon herself to rescue them while simultaneously dealing with whatever evil force is now reigning supreme upon the land. Aryll uses her experience with the pirate crew she was sharing residence with throughout the course of the original Wind Waker's narrative. She consults the pirate crew once again, and has them train her in the art of swordplay so she can rescue her brother and their Captain. Instead of the traditional Longsword weapon Zelda players have been familiar with since TLOZ's inception, Aryll uses duel cutlasses as her main means of offense. Combat focuses on combos to a larger extent than that of normal Zelda gameplay. Continuous motion and smooth animations play a large role in her fighting style. She ofc uses her telescope as a means of spotting far off items, as did her brother in the first Wind Waker. Aryll, however, does not need to purchase a fruit from that weird ass vendor in order to enlist the aid of her seagull comrades. She can call upon the seagulls with her notorious "Hoooy!" and use varying button combinations in order to have them attack in whatever way suits her needs best at the moment.
Instead of exploring the same Great Sea as in the previous game, the map opens up from a different axis around Outset Island. Outset Island now occupies the top right most corner of the in game map, allowing players to feast their eyes on a portion of the Great Sea never before seen, with bountiful islands and other land masses galore. Ship travel works as it did in WInd Waker HD with an option to increase your ship's movement speed by means of other sails. This feature is expanded upon allowing at least 3 levels of travel speed with the last being a reward that one receives after completing some ludicrously difficult hidden dungeon. More large scale sea creature battles and variety of actual creatures. Maybe giant Sea Serpents like the ones seen in the One Piece series of Manga/Anime. Varied body types and species with different means of attack and different strategies required for each species in order to reign victorious. Overall, the graphical presentation should be attractive; smooth animations, greater polygon count for character models, higher texture resolution, generally better lighting, and perfection of the cel-shading techniques used in the original. Once again, I believe this game would fit best on the Switch or Nintendo's next console.
#3 Sonic Adventure 3
Number 1: get rid of all the trashy play styles prevalent in the previous two titles (namely no Tails mech, no treasure hunting with Knuckles/Rogue, and no damn Big the Cat fishing). Number 2: Make new (fun) gameplay styles for all the characters who were booted in Number 1. Number 3, PRIORITIZE THE CHAO GARDEN ABOVE ALL ELSE!
Sonic Adventure 2 was such a compelling game. Why? Because players would get so involved in the Chao progression system and how gameplay within the action stages could directly influence things in the Chao Garden that they overlooked so many of the flaws with the game. Remove the flaws (aka Numero Uno) and expand upon the strongest aspect of the game. Chao garden should be made more complex in every way possible; new events, new stats, new alignments, new cross breeding potential, new animals to collect, new ways to influence the growth of your Chao, ways to battle Chao across the internet or have them compete in races against other people, you NAME it.
The main gameplay of the game should ofc be the standard action stages sure. A suitably "epic" storyline would be much appreciated too. Make it something serious, for Gods sake! Enough of these silly attempts at comedic narratives. Even if the serious tone comes off as cheesy, it is an improvement as far as i am concerned. SA2 did a wonderful job in the story department if you ask me; despite all the plotholes and shit lol. Sonic stages should be fast and frantic, but with lots of opportunities for in depth exploration and multiple branching pathways. The Emblem system in SA2 was perfection, bring that back. SA3 should be an evolved SA 2 with hundreds if not thousands of hours of content. Sega needs to stop it with the shallow/ gimmicky gameplay and go back to the bread and butter of a game like SA2. Such immaculate controls on Sonic & Shadow. SO much diversity in gameplay. And, most importantly, such an addictive and deep pet raising simulator in the Chao Garden 
Graphics should be similar to the screenshot below. I think this game should be multiplat: PC, Ps4, Xbone, Switch (on second thought, Switch prolly can't handle this tbh lol).
