I am relatively new to UE and would like to use the Infinity Blade assets as a sort of starter kit, but I cannot currently add them into any recent projects because it is not compatible. Is there any way to make/force compatibility?
The easy answer is no. They will release an update for 4.11 and since it barely came out it may be a while longer. With that said there is no harm in creating a project with it in a compatible engine and then trying to open that with 4.11 to see if it will upgrade.