I wonder how the Quantum Realm will come into play as far as The Avengers go in Avengers 4? Think about it Thanos collecting Infinity Stones and having the full gauntlet including the Time Stone he can go back in time right or alter time together whereas in the Quantum Realm all concepts of space and time are basically altered. Plus the Time Vortex in the mid credits with Scott going sub atomic and ending up in the Quantum Realm it makes me wonder just how he gets out but if he went through the Time Vortex he would go forward in time however with the Quantum Realm can't he go back in time as well?
Basically different paradoxes could be used right? I am asking because I am such a time travel/space nut but also because they use the Paradox theory for films like the Back to the Future trilogy and the Terminator films using different timelines and those being altered so I have to wonder if the Quantum Realm has that same effect in order to defeat Thanos once and for all