Malik is still in pakistan t20 squad which means that they are still seeing him play in the 2022 T20 world cup which is to be happened in australia. It is not too far away and they can do that, i think in hafeez can continue for one more year in t20 and then both of them can retire.
And yes really hope that bangladesh come back to form as they are a promising side, but just not done well recently.
Bangladesh wasn't able to win any test match against Pakistan till date. They were very close to winning test against Pakistan in 2003, thanks to responsible innings by inzamam Pakistan manage to win that test. Seeing the current form of Bangladesh I don't think there are much chances of Bangladesh winning any test match.