If it turns out World is a repurposed Deep Down it leaves the original MH team free to do stuff like MH5. I don't think the localization for MHXX would generate a huge workload from them since it's handled externally by 8-4.
I could agree with you, but usually the mh localization work took mh team 1 year to make it come to eu after the japanese release.
They need a lot of time, probably because the number of the staff they had/have.
I don't get why people still say that deep down could be change in mh.
People that want mh, already buy it and don't want the gameplay to change.
People that was interested in Deep down, probably will be not in mh because the big changes on the art style.
The only thing in common is a dragon in a trailer.
It seems to me that many people have a big immagination, or just want too much to make mh happen to a sony console again..