Shinj Mikami next project is his final game he'll ever create. It'll probably play just like RE4
Thats a shame :/
Maybe walking while shooting.
Bethesda are the publisher for his game, It's the same company that published Skyrim and Fallout, First person shooters and open-worlded RPG games at the same time.
Shinji stated that he likes open-world games like GTA and Skyrim. If anything, I doubt his game will play like the classic RE games, It'll either play like RE4 or like Skyrim/Fallout but with survival horror elements.
I have no idea what Capcom was thinking with most of the storylines from RE4 onwards, its funny that Resident Evil 4 was the last game that Shinji Mikami had a hand in, when he left Capcom thats when RE started down the path of failure in my opinion. I think Capcom needs Shinji back to make RE what it once was, but we all know that will never happen :/
Considering Mikami just worked on BH1, It's Remake and BH4, the series is fine without him.