1: Doctor Who is owned by the BBC. Despite them having no plans to revive it for years they resisted all efforts to license it to anywhere else. Now that it has been successfully revived don't count on them relocating or re-licensing it to anyone else, ever. They have owned it since 1963 and are not about to give it up.
2: Russell T. Davies is relocating to America, and the central character (and indeed pretty much the only remaining character) is American. The largely by-now-accepted rumour is that Torchwood will therefore be moving to the US. This is not a remake, but a continuation weith a relocation. I, for one, see absolutely no problem with that.