Dragon's Dogma 2 could be a possibility, but considering the scale of the first game, it might be a while until anything is mentioned. They could obviously pull a Square Enix and announce the game only for Dragon Dogma fans to wait for like 5 years until actual gameplay or information shows pops up. Also, I think deep down might be taking Dragon's Dogma's "spot" for a little while. Heck, at this point they're opposites. Dragon's Dogma is more of a singleplayer fantasy game while deep down is confirmed by Capcom to be more online multiplayer heavy. Funny how they both have similar acronyms: DD for Dragon's Dogma and dd for deep down if we're following the style from the trailers, otherwise they're both DD.
As for DMC5 or even DmC2, I don't really know. If Capcom chooses DmC2 and wants NT's assistance, then they're probably going to have to wait since Ninja Theory is working on the Blue Girl game. If Capcom's just going to make DmC2 without NT's help, then sure I guess that's a possibility since Capcom already has Dante's and Vergil's combat systems along with a simple story to continue: Vergil leading the demons, Dante and Kat as resistance fighters, and Limbo and the normal world fused together. Capcom could introduce angels too, as some third-party faction.
For DMC5, if we just disregard the story and consider DMC's "story" like a cartoon's, then whatever can happen because it can. That said, the combat is just there waiting to be improved on from DMC4. Heck, DmC introduced a couple of nifty ideas like having chargeable moves such as Drive being quicker and having more flexibility in combat, along with different weapons being able to follow up pause combos, and pretty much expanded Vergil's moveset so if there's going to be a Vergil returns story, then maybe some things from Vergil's Downfall can transition to DMC5. Oh, and maybe they could try out that gunplay concept from DmC's debut trailer. Y'know, the thing with Dante jumping over the Stygian shooting it in mid-air and Dante sort of doing combos with Ebony & Ivory. If DMC5 happens then I would love to see both DMC and DmC continue as parallel installments.
Still, let's be real guys. The unannounced title will be Super Devil May Cry 4: Smokin' Sick Stylish Edition or SDMC4: SSSE. Play the beloved game from 2008. New features include the ability to play as Trish, the beautiful and dangerous bombshell, and Credo, the Order's most loyal. Tweaked game mechanics make combat even more smooth! Remastered audio gives Nero, Dante, and others even more personality. Expect Nero to actually say "**** you" a lot! Edgy and appealing to everyone! New tracks highlight the atmosphere of Devil May Cry! After all, Wub Wubs make everything cool! All for the low, low price of $49.99. Available on the PS3, PS4, Xbox 360, Xbox One, PC, and not the Wii U because it sucks!
Also, not included but will be available later: New costumes for Dante, Nero, Trish, and Credo! Each new, amazing look will be at a low price of $3.99! Dress up Dante in his DmC: Devil May Cry attire! Have Nero look like his father: Vergil! Play as Gloria! And experience Credo in his pajamas! Later on, more risque outfits will be available! Be sure to purchase the tight speedo pack and gothic lolita outfits for the leading males! And have fun with casual, formal, and modest looks for Trish! Fantastic, awesome, great, and crazy!