In some ways the Traveler appears to possess almost Q like (or at least proto-Q like) powers, so has there ever been any interaction or suggested connection or relationship between the two in the existing Star Trek canon that might shed a little light on that?
One way to rephrase the question (or consider it from a different angle) could perhaps be to ask:
Are the Traveler's perhaps an early offshoot of the Q (from before they became the Q) or might they be considered an example of parallel evolution heading in the same direction as the Q but currently at an earlier stage.
That would perhaps fall too far within the realms of "primarily opinion based" however so I leave my question as originally formulated.