I read on the UFL site that next year they plan to have their draft the week before the NFL draft.
There could a real impact on NFL draft ... suppose a projected lower-round NFL guy goes "in the first round" of the UFL draft; does his NFL draft stock go up or down or does he come off the NFL board entirely? The UFL says their pay structure is 'a little better than practice player pay' with top pay at $4 million for the 7-week playing season (which they say is comparable to about $12 million annually in the NFL).
Does a player in this situation 1) take the UFL job (the "bird in the hand") and hope he does well enough to get 'picked-up' when the UFL season is over, or 2) wait until after the NFL draft to respond to the UFL, or 3) completely ignore the UFL draft and hope for the NFL to come through, knowing that if he doesn't make the NFL team roster in August, he'll probably end-up in the UFL anyway? And are there other scenarios?
Will there be any 'affiliations' between NFL and UFL teams - the league says there is no affiliation at this time, but things I've read certainly leave the door open. Suppose an NFL club had a prospect, but felt he 'needed development' - is it crazy to think an NFL club might offer cash/etc. to a UFL club to bring in that player to develop him? Or after training camp, there might be a guy who is the last one cut, would an NFL team say to a UFL team 'take this guy, and if you get him where we like him, we'll pay you $X for him in November, plus we'll contribute Y% of his salary for now.' Anything seems possible, and with the potential to get unseasoned players game experience, with professional NFL coaching, it seems like there will have to be some relationships starting to develop between NFL and UFL clubs.
Or is D-I college already the NFL developmental league, with no cost to the NFL?

I don't suspect the UFL draft will affect the solidly "top" round (say rounds 1-4,5) players, but it could mix things up in the late rounds for sure.
I think the success of the UFL this year (everything I've seen and read really looks like Commish Huyghue is doing it up right) will determine what kind of impact their UFL draft will make on the NFL draft.
There are going to be a lot of 'unknowns' with this new league and the draft will potentially see some wild twists and turns.
Lots to talk and think about!