By his own admission Tim thinks of himself as a master manipulator - I think with him in charge he wouldn't be able to resist pulling the strings to get the outcome he wants....okay... I have a dream... Channel 10 snaps up the rights to Big Brother and have Tim Dormer Produce it... he would most likely take the show back to it's grass roots and 'make it real' as it used to be... he would allow the Live feeds to run 24/7... there would be no more 'storylines'... the contestants would be the people that go through the actual process of auditioning the old fashioned way and none of them would have an Agent or be tied to an Agency either... there would be Unicorns and Rainbows and the birds would sing and... and... um... er... sorry about that I just went off into LaLah Land for a few seconds there peoples... right!... back to reality... again... sorry about that... just remember... dreams are free... I'll shut up now... cheers.
In terms of "career" I think it is worth remembering very few Big Brother housemates, including winners, have any kind of TV career after the show and although Tim may have been a great personality as a housemate that may not translate to being a great presenter - and even if he was Channel 9 (or others) may not have a format which would actually suit him.
I also think it is worth remembering that Big Brother Canada is a game and not everything that a housemate said should be taken at face value. Although I suspect what Tim said in that clip is largely true he's also at that moment trying to sell himself as someone who can manipulate people into doing things they might not want to do, something which people he is seemingly alligned with might see as a reason to keep him around in the short term at least.