I personally think he has to come back next season. Watching him all but keep A.Madrid in the 1st leg last night, shows he is up for task of competing with Cech for the number 1 spot.
The tie will come down to whether we can shut PSG out or not. We have conceded the fewest goals in the CL this year (4), so we will need to keep that record up to progress.
I have noticed that Torres normally only performs when things are going well for Chelsea. When the going gets tough, e.g. Saturday; he is useless. The only shiny light from him this season was, his winner against City.
The Man City result was a plus in my eyes, as I thought they would do to Arsenal what they did to Utd. It is still a long shot, and we are very reliant on other teams doing their job, but crazier things have happened in football.
I can see both teams scoring to be fair. A score draw would be a decent result, and we could finish the job off at The Bridge. We HAVE to take our chances though.