Genuinely, I'd be so surprised if the rumours are true. This year alone he has won the Masked Singer, he has mentored the winner of The Voice and they have sold out a massive UK arena tour for next year. He's doing alright for an ageing 00s popstar! It would make more sense for him to wait a few years, especially as McFly are going to run out of TV shows to take part in when their careers begin to decline! Also, he has a young son. And imagine how insufferable Georgia would be on Instagram if she was having to solo parent...
Having said all that, I hope the rumours are true and I think Danny would do really well!