thanks for the warning , a neat drawing ;They should reboot , soft reboot , add something totally new in any case , it doesn't matter what they'll call it. Whatever retro is doing (hopefully) with metroid prime 4 they should continue and do what they do best , but i don't know how , maybe involve someone else , they should add five six times the metroid blast content , in both "serious" and mii mode , with wave mode and a campaign aka going through different part of the stage . And also to do like anyone else add online to that , the lag should be minimum , and versus team play and so on.
Metroid blast is the most played game after all in nintendoland, then again that would mean they should also a brand new mode to zelda.
It's probably too late though , and can't really expect anything remotely like that (4p local coop wiimote horde campaign) from the third parties despite shooters being their thing . Let alone the clever use of a samus ship . All those helicopters in those games are on rails and keep crashing at the end .