You are both correct that it will focus on a different (new) hero each week and viewers will be able to vote online for their favourite.
Heroes Origins is due to be released during the normal six week hiatus on US television (i think to help reduce the viewing figure drop which always happens when shows do this, hence the reason LOST will have less episodes in its next season and start in February 08). I had read somewhere that BBC2 were very interested in being involved with this. However, as Series 2 begins in the US on the 24th Sept and the BBC haven't finished the 1st series this looks unlikely
