If the institutional investors keep buying, the current bull run will be longer and the bear market will no longer be as bad as the previous ones. It's just a feeling though, but others have already said that this bull run is going to be different.
We are seeing some institutions are planning for long term holding of bitcoins (like they pay their employees in BTC and tweeting about future prices of bitcoins after decades etc) and most others are seeming like buying just for momentary benefits. Still, institutions are known for cashing out before anyone else so that they could enjoy all the benefits of final ATH. So, I am not expecting a different bear season from this current cycle of bitcoin markets.
Moreover there is a big possibilities for shorter or longer bull run on this cycle; usually bull run will end in December month but there cannot be any surprises if the current bull run may end in October itself or may last until the fist quarter of 2022 because now the end of bull run is purely into institutions' hand.