Suarez has a ridiculous talent. Loathsome or misunderstood will forever be up for debate, but his ability is not. I do not see why a mid-table side would keep hold of such a player, it would rely on the player having little interest in money, trophies and being completely in love with the place. It's not impossible, but being a skeptic created by years of the profiteering premier league rabble, I can't really get on board with that idea.
If he likes it in England so much, he could go to Man City. Manchester's not far away, and they have the resources.
I think he'd fit better with Real Madrid, I don't really see him working too well in the Barca set-up, but who knows.
Of course, I think it would be lovely if he stayed at Liverpool (especially if there wasn't a major investment in playing staff or significant upturn in league position), and would certainly restore some of my faith in humanity! He'd certainly have my respect.
It's not entirely implausible that Liverpool get back to being a top 4 club, or better, in years to come, but the new financial regime seems a little bit limited for rapid progression. It would be nice if they could get back to playing the sort of football that won them the Champions League and FA Cup in a style that thrilled the neutral, and there are brief glimpses of that, but usually against poor opposition.