There would be if he changed at all through his experience of them, which so far is green, yellow, blue, red, and I think briefly orange?...But he doesn't, they take him over and then he throws them off in favor of the green. Which is stubbornness, which is a type of will. Hal is not capable, and does not want, to embrace them all. He's not the Godhead type, and I think he might be crucial but he will not be the savior.
The fact that Dove is the last one I'd ever expect to come to something, and that the characters seem to think the same, leads me to think it's going to go in her direction.