I'm seeing a trilogy between them is possible if:
- if no boxing politics will ruin that or any dramas like what happened on how long this match got materialized
- if both boxers will not move up weight after their fight - for the winner despite being an undisputed champion already or for the loser, that doesn't have any interest anymore in the rematch
- if the price is right since the winner of this match should surely demand a much more share of the split in the rematch or trilogy
- if the match will end up DRAW
Anyways, too early for the trilogy discussion since even though there's a rematch clause on this match, I highly believed that it will go on a long process again, the same as what happened forming this first meetup. Aside from that, Crawford is catching up with his age and might push for the next stage of his career rather than facing Spence over and over again if he wins this match.
A trilogy is very possible with boxing politics. First, they will make a controversial judge's decision ( if the fight doesn't end in knock-out) to trigger the need for the second match. Then obviously they will make the loser win making it possible for the third fight, thus trilogy is created.
Let's see how the first fight will conclude fight before talking of a rematch and then the trilogy itself. Even fighters says that this fight is 50/50 but in the end, give the edge to Crawford slightly.
I am also inclined to Crawford's ability to beat Spence, but of course, there are many variables in the fight like how Spence Jr. prepares. If Spence camp is able to scout Crawford's fighting pattern, they might create a strategy to counter or nullify Crawfords's ability. After all when two great boxers fight, the camp competion in how they prepare their boxer is like chess.