Where I think the series is heading toward in terms of story? Down the drain. I'm usually an optimist, but with DMC in particular I can't help but be slightly pessimistic. If they follow tradition, the next game will have absolutely nothing to do with the previous game and they'll only leave a few hints and throw in a few familiar characters to link the games together. No questions will be answered. But we're guaranteed that more questions will be added to our endless list.
Do I think it's going to be whored out? Well, yeah. They've been whoring Dante around like it's Christmas, so it's bound to happen.
Capcom's master plan? Yeah. Since Hideki is no longer on the team, they're going to replace Dante with a young and spunky Nero from hereon. That's their master plan. Whoop.
Am I worried? No. They'll keep to the same ol' same ol' and as I said before, bring out a new game that has no relation to the previous, only with Nero as protagonist and if we're lucky, they'll reference Dante on occasion. The game will be good. But it won't be good enough.
Am I satisfied? I'm a hardcore Dante fan. I'll wait to watch all the cutscenes of the new game on YT. If there is Dante, I'll buy. If not, count me out as a New Age DMC fan. Unless Nero manages to swoon me, which I highly doubt. Chances are they'll get a new VA to do Nero, and people won't like him as much - doom to the DMC series. So, no, I'm not satisfied with the direction Capcom wants to take the series.
OMG, if I was in control of the series? I'd take it places that will blow yer mind! My goal would be to wrap it up - answer all questions, fill all plot holes, make SENSE of everything that's happened, all in one epic game with gore and blood and pain and fights and witty oneliners in abundance. And I just mean wrap up the confusion, not the series. Like I said, I could take it places. People might not like it at first and will have to warm up to my ideas. I'm all for the idea of Trish still being in alliance with Mundus and just waiting for the right moment to betray Dante. Mean, I know, but it's possible, and I see no reason why it should be discarded. Mundus has to be one smart arse - why wouldn't he take this route? I think everything in DMC1 was choreographed and planned to fool Dante and break down his defences. AND he's got the Sparda sword - Mundus probably wants it for when he conquers earth, so why not put his minion right next to it to snatch it away when the time is ripe? Dante wouldn't know what hit him. It's the perfect evil master plan, IMO.
The final conclusion? A repeat, of course, of everything Sparda had to do to save humanity. Only this time it comes down on Dante and Nero's shoulders, and they kinda fail before succeeding. In other words, the demon and human realms merge because like Sparda, there is no trace of Dante or Nero to stop it, and humanity is left in despair before Dante and Nero pitch up on the scene and have their own epic jackpot moment.
Would I want the series to end? As long as Dante's in there, no.
Would I want it to drag on forever? Yeah, why not? RE doesn't seem to have an end and nobody is getting tired of shooting zombies, so there should be no reason why we can't keep kicking demon butt and saving the world for the next 7-10 years. I'm hoping the series is still good and highly desired by the time my kids hit their teens. Would love to have them join the fandom.
BUT, I really wish Capcom would stop bringing new characters in to play. We've got our DMC cast, and they're all good characters that need to be explored more. No more newbs or OCs or whatever. They can make do with the characters they've already created. Heck, they can bring Sid and Patty and Morrison over from the anime and implement them into the game as plot devices even. There's no need for newbs. Let Nero be the last, I say!