Hang on, what would be the point of making Devil May Cry 5 before Devil May Cry 3, all of the Story before Devil May Cry 3 is told in the Manga. So, really there would be no point sorry.
Plus, I would have to see how Devil May Cry 4 panned out first, because if it ended up at the start of Devil May Cry 2 then I would have to do it after. But if it still didn't end up by Devil May Cry 2, then I would just build it up to it.