Rebooting comes from a meltdown.
If it is not broken it doesn't need fixing, if it's broken but fixable all it needs is a slight patch but if it's totally smashed but has a recognisable identity then you go back and re-invent.
The beauty of the format is that you can (in theory) tell any story at all with Doctor Who.
He can go anywhere, any when.
Backwards, forwards, sideways and outside through the universe.
There is never a need to reboot the thing or even worry that much about canon because the format allows for all stories to fit in a way that no other story series can.
Even the Peter Cushing stories can be wiggled into place with a few lines of dialogue.
Paul would be the ideal Doctor to play with because visually he is almost a blank slate and yet backwards, forwards and sideways through the television show, the comics, the audioplays, the novels etc he has possibly a huge scope of impact and he is a good actor.
You can connect the Eighth Doctor into almost any story and still have him fit into the television show continuity and the classic show continuity without making steam come out of the ears of anyone reading or listening to anything else.
However if these films are to be an alternative to ongoing television stories to save the BBC some cash it could be a terrible disaster.
Just look at the wealth of Star Trek visual stories since Enterprise went off the air.
Impressive aren't they?