Capcom Unity spoke briefly about this recently also. They encouraged people to make some noise so the higher ups could see how keen people are to have the game revisited.
Thing is, I don't think it should be - at least with respect to balance. 2012 is a very balanced game as it stands currently and if character balance was to be looked at I'd argue perhaps only Seth and Viper should be look at with any serious degree of scrutiny. There's only so much spit and polish you can apply before you start damaging the paintwork in my opinion and Capcom could do damage to the game if they got too gung-ho.
However, I do think it could be revisited from a function stand point:
- Permit lobby rematches for 2 player games
- Allow training mode sessions to accept ranked or endless challengers rather than just arcade mode
- Allow friends to participate in training mode sessions online
- Provide an offline lag simulator ala Marvel
- Hitbox displays in training mode option
- Extended record buffer options in training mode (i.e. 10 sec, 30 sec, 60 sec)
- Audible tone for counterhits + enlarged 'counterhit' text notification
- True music/effects mute option
- Bring back thumbs up/thumbs down guy from the lobbies!
- Re-instate Championship mode? I quite liked that from Vanilla.
- Button config on player select screen + implement HDR style button config
- Offline ladder/tournament generation. For example, SSF2 had this on consoles back in the 90s. Why not today?
- Offline match record. Why is this an online only feature?
- Extended start button input registers to prevent accidental pauses during matches
I'd really like to see ALL characters receive at least one NEW move if they seriously revisit the game though. Something to freshen it up.
It was really fun finding the new stuff in ST back in the day when it came out because SF2 had been somewhat static with respect to moves for years. ST dropped and suddenly we had new moves scattered all over the place - the addition of command normals, juggles and overheads for example was huge. A new move for each character in IV specifically targeted at addressing a potential problem in a character's worst matchup would be very cool. At the very least it would breathe a bit of life into things. Imagine ken received his knee-bash? Fuerte had a ground based command throw? Bison an overhead normal?
I'd also like to see Capcom experiment with some elements that don't impact the gameplay. One being character settings preferences. By this I mean you get to choose the preferred settings for your opponent's character, irrespective of their chosen colour or costume. So say for example you could force (much like say, character voice languages) predefined character colours and costumes to avoid Blanka's garish (and hitbox obscuring alts) or those irritating stencil colours (colour 12?). Your opponent would see their chosen costume, just on your end it would be set to your preference.
Secondly I'd really like to see Capcom revisit that USB dongle idea they had for SFxT's gem management albeit for SFIV. On the USB dongles they could not only store BP and PP, but also button configs, preferred character colours, names, costumes, win/lose stats, total games, etc - basically just like the gamecards used in Japan. I feel this could work quite well - you could also take it to locals/tournies and not only record your results, but also take with you your button config ready to roll. Its entirely possible it could retain recorded match buffers as the file sizes for the playback data is actually very tiny.
Of course, Capcom are very close-minded when it comes to this kind of thing and have revealed themselves to be pretty third rate developers in this arena so I doubt none of this will ever see the light of day.
I'd drop $10 if these features were released as DLC though. Perhaps that's the incentive they need.
Too much text, I blame coffee. Sorry Spencer.