I'm quite pleased at this news, as he may be instrumental in denying some of our nearest rivals from scoring - as long as he doesn't make his usual blunders!!!!
Shame it had to come to this but SB has clearly been lacking motivation and has reportedly been a rather poor role model for the younger squad members, perhaps until recently. It's a good move for the club financially and it should improve his match-fitness. Also, it is just a loan move so the sell/loan/keep option can be revisited in January when Neil will be looking to tweak the squad for the run-in.
He won't want to come back because he knows that if he doesn't get on with a manager at Watford, another one will arrive in a couple of weeks.
I think this is a 'risk' sending him to a promotion rival, but not as much as some have made it out to be on twitter etc. He by his own admission when he first arrived at norwich needed a run of games to get full fitness up and feel his way back into form as his fitness came back. He claimed the only way he could do this was a run of games in the team. He wasn't an instant giant at the back, our defensive turn around in his first season was against arsenal when we managed a clean sheet in the 1-0 win which started the infamous '10 game run'. That was 6 games after seb made his debut. If he takes 6 games to get up to speed at watford that's only 7 games of him at full fitness, assuming he starts every game. I personally don't think 2 games a week will suit him reading between the lines of his fitness situation last year. Hopefully then he fires in the last month of his loan and either comes back to us in top form to help us go up or emphatically puts himself in the shop window just in time for january at which point a struggling prem team pays over the odds for him. Nevertheless, it's a risk and if it backfires badly there will be some serious questions asked of our board.