Both Joe & Janette would be examples of people consistently promoted well above their station so I sincerely hope ITT does not go for him. It would be an insult for it to be those two after actual presenters Rylan, Zoe & Claudia all did such a good job with it.
The absolute best case scenario is that it's boring and a bit awkward (since Joe lacks the necessary charisma). That's assuming he can present. If he can't, then it would be an out and out disaster.
It would also guarantee Dianne a pro slot for life regardless of how many Week 4 exits she has and would keep his godawful fanbase clogging up Digital Spy and SCD's social media.
Mega no from me.