Yes they are re-imagined versions of the Phase II characters. And Phase II is a re-imagined version of TOS. Both Decker and Riker are young action hero Kirk. While Picard and Phase II Kirk are intellectual older Kirk. Data is Spock's "knows it all" mystified by humans aspect. Troi and Worf represent his human/alien aspect. Troi also had the "mind power" aspect. Worf has the " humans" thing, too. Crusher is the old friend and confidant part of McCoy. Pulaski was McCoy in drag.