Actually they didnt technically follow capcom as much as I hate capcom and their money milking ways. The original series Guilty Gear (GG later became BB, sorta) also by aksys had sooooo many versions in such a short period of time it was almost rediculous. I admite I rather not have to pay over and over for little things but EXTEND at least is more worth it over SF/UMVC3... we new balance changes, new modes, new story for dlc characters and a brand new character (thats 4 new characters that cost like 8$~ each for original version). Plus including all the previous DLC on the disk is a nice bonus (one which I was expecting from UMvC3 but whatever, that's Capcom so what did I expect?). Now I just wish they could up the scale of the game to 1080p and not 720 /sigh.
Nu-13 has been replaced by Lambda-11 similar but not quite the same. Unlimited forms must now either be purchased or you have to beat Score Attack with said character. It's become a much bigger hassle to do at least to me it was.
Additions with CS/Extend character wise
1. Trinity the Platinum 2. Valkenhayn R. Hellsing [Rachels butler] 3. Tsubaki Yayoi 4. Hazama 5. Relius Clover 6. Mu 12
Not really sure about much else other than a continuation of the story mode, balance, changes, and other things of that nature.
This should help more http://blazblue.wikia.com/wiki/BlazBlue:_Continuum_Shift
You really can't give them too much blame for making this standalone; SSFIV Arcade this isn't, not by a long shot. SSFIV Arcade was a *step down* from Super, adding almost nothing and actually making the balance worse. Granted, you could upgrade Super (not the original) for $15, but it wasn't even worth it for what you got, which was a worse version of Super. At least Aksys tends to release actual balance patches and half-decent new content. Besides, CSII doesn't really count, being a portable-only title. For what you get, I think EXTEND is robust enough to be its own release. Yeah, it's not a full-fledged sequel like CS was and it's the same price, but in comparison to the obscene SSFIV "upgrades", it's definitely a few steps up. I can forgive it this time. Besides, it's not like I can't sell CS for a few bucks.
When I picked up Calamity Trigger it wasn't actually that much. And by the time I got to Continuum Shift the game had already dropped down to twenty bucks... and that was brand new. I paid less for both games than I would one new game. And Continuum Shift actually did offer slightly more than I expected. As the story was completely and totally different and it offered new game modes. It didn't change the core of the game, though, and the levels and music were still the same, but the story is totally different, there are a couple of new fighters and they added a couple of gameplay modes. Worth forty bucks? No, not exactly, but paying twenty? Sure why not.
My thing about EXTEND is that I don't know what it offers beyond what I've already got in the original Continuum shift. But I didn't pay much for Continuum Shift so I imagine I'll do the same here. Wait until the price drops to around 17-20 bucks and then look into it. If you feel you must have it, that is.
Thanks for all your inputs and opinions. I think I'll pass on this one... Fighting games are just not worth it anymore...to much hassle and BS to put up with. At least Namco Bandai for example, waits 2 or 3 years to release a sequel...and even like that it doesn't seem to worth the upgrade most of the time.