Yep, RTD all but stated it outright with Donna's fate at the end of Tennant's run. There cannot be a human/Time Lord hybrid. It's genetically impossible and would burn a human brain right out.

The McGann movie was an American production of Doctor Who. Generally, it's considered that The Doctor himself, the budget, and the TARDIS interior were awesome, while everything else was utter shit.

If you ever wanted more 8th Doctor, McGann reprises the role for five years worth of audio stories from Big Finish (Link), where critics and fans alike have praised him for the role.

It will be a fucking crime if he's never allowed to appear as The Doctor onscreen again...