In the June issue of EGM they go through a lot of 'retro' articles (by Jeremy Parish) including the best series re-imaginings (as in Super Metroid->Metroid Prime), series that were better off dead (as in Frogger->Frogger 2: Swampy's Revenge), and going over some of the "True" sequels (meaning actual numbered sequels like Contra 4, Mother 3, etc)...BUT...
Missing In Action (all the way back at page 95) included his top 5 games he says fans would be thrilled to see sequels to...
5 - Strider - How can you NOT agree with this? Strider kicked ass and continued to kick ass in Marvel Vs Capcom.
4 - Road Rash - I never played it myself...but whatever, it's only one spot...
3 - Parasite Eve - He mentions the eventual cell phone release of The Third Birthday (hopefully a working title...>_>)...but you gotta agree that a new PE on current gen would be absolutely-a-fucking-mazing.
2 - Mega Man - He basically talks about a revival of the original series...I don't blame him, the blue bomber's been relegated to a elementary kid's Power Ranger (technically more VR Trooper) form and a NPC role in the Zero series (which I assume continues in the ZX series?)...It'd be nice to play as good ol' buster shooting, power stealing Megaman.
1 - Chrono Trigger - I'll quote directly from the article since this is what you opened this thread for...
Chrono Trigger
Last seen: Chrono Cross - PS1 - 2000
Chrono Trigger remains one of the most beloved role-playing games ever created thanks to its innovative storytelling and streamlined gameplay. Its follow-up, Chrono Cross, was more like a side story than a sequel, focusing on new characters and a minor plot point from Trigger. And since then-nothing. Well, almost nothing: Rumors circulated of a Square-held trademark for a "Chrono Break," which ignited speculation (it's a break in time! Or maybe a brake, like on a car?) until the trademark lapsed. These days, all the company does with the series is quash fan efforts to remake the original-and if they're going to all that trouble, why not put some effort into a sequel, too?