[MrGaryy]

Hey after weeks of asking, I finally got my question answered on Tube Talk about whether BB10 would be aired on E4.

This is what it says (I'm gary):

Gary: "Have you been watching BBUSA on E4? I hear CBS are making another series in the summer too, but are E4 airing that too?"
Neil: The current season of BBUSA has failed to capture my attention (and ditto for the US public, it seems). The summer season won't be shown on E4 - at least not in real-time - because of scheduling conflicts with our version. That's not to rule it out airing from the autumn, but given the unspectacular ratings it's unlikely.

Source, Digtial Spy