Any club that is in form can win the Champions League, don't feel that's only Chelsea that can win it. There are more elite clubs in the Champions League than Chelsea despite that Chelsea performance shows that they're in form. Nobody knows which club can make it to the final at this stage.
And by more elite teams you mean teams like Barcelona, Real Madrid, Bayern Munich, PSG, Inter Milan, Liverpool, etc. I would have agreed with you had it been that this was coming one or two seasons ago when the stats of Chelsea performance was really that nothing to lay hope on, but as for today's Chelsea they may be looking like a team wirh no big name players in the club but they are a threat to many of these more elite teams. We might not have knowledge of which teams exactly will make it to the finals but its doesn't hinder us from habibour favourite teams for the trophy.