I think we did this unlocking convo in the KoF XIII forums a month or 2 ago

As a person who already doesn't mind ublockables, even if they are characters, I'll just say, I hope SC still keeps the "Multi ways to unlock" scheme. Nothing needs to be as bad as SFIV's original "unlock half the cast" stuff.
I'm a bit annoyed to not see Talim yet. She was definitely my main in 2 and 4. I'd also like to see how she grew up, hope she's one of these last hidden ones! Losing out on Zasalamel would also really suck.
Amyway, as far as bonus modes in fighters... I rather enjoy them myself. I didn't like Tekken's devil-within mode from 3 or so, but I like 6's, seemed like a budget version of PS2's Urban Reign, lol. Kinda like an XBLA game or something. Would have been better with 2P offline out the box.
Also really liked the strategy mode for SCIII. My friend and I had great fun making our own characters and taking to the story. I was rather impressed with the quality map graphics and stuff they made for it, compared to, say, that lifeless map they had in a similiar mode for Blazblue. I also like how it fleshed out characters like Arthur and Obelia, or even the Revenant; it was like getting to peer into the life of some of the cool NPCs and bit-characters, which was fun. (I miss Grieve-Edge too, while we're at it, lol.)
Even that had nothing on Tobal No. 1 and 2's RPG modes, complimented by Erghiez! They might have felt a little rough, but I rather enjoyed such offerings.
I find that as much as I FOCUS on the VS aspect on fighters, of course, I rather enjoy them as "full products" also. I remember back in the SNES days, while I felt like they gave me the most replay, I did occassionally laugh at how swiftly you could see all the content in a fighting game.
Because of this, I don't mind unlocks being an annoyance for the competitive scene
as much, when the plushing up of the package as a whole is good for the genre sales overall. "You'll see it all in an hour!" isn't a great selling point to get a curious onlooker into a game.
I'm a little offput by the unlock stuff in THIS game's case, but because it seems awkward to be in mystery THIS close to release. It makes it seem sloppy. The whole development of the game seems kinda haphazard and rushed...
...But at the same time, I've always enjoyed the experimentation aspects of the Soul series. Interactive endings in SC1, customizable openings and guest in SC2, RPG mode and mini games in 3, truly fleshed out customization in IV... a bit of "goofy" and "awkward" seems like a part of the series, just as how senseless characters and joke endings seem a part of Tekken.
III and IV were some of the most-hyped I ever felt for 3D fighters, V I think is going to have to grow on me....