It's good that Adam has shown some good form, we have needed it.
But i'm sure Klopp is looking to upgrade, this summer, Klopp recognises his qualities but these qualities will only take you so far. Klopp picking him in most of the big games doesn't prove that he is a long term starter, as Klopp also starts moreno and mignolet in most games, but i'm sure he is looking to upgrade them also.
I see Adam more like Park Ji sung than iniesta. In big games against teams that might try to play a bit of football, his ball retention and pressing might be helpful, but against the bread and butter ( of which their will be more next year, trying to follow Leicester's blue print of low risk, direct football) you need more pace, power and goals than what adam seems to offer.
I feel some are going a little overboard praising Adam's more than useful contribution this year, I see posts talking about him being player of the season, if that's the case, that is a good explanation, why we are 8th. I'd prefer if we didn't sell, but if a sale could fund improvements elsewhere I'd understand. IF we do sell don't expect any blockbuster bids from any european superpower, which again tells you something