^^ Yeah, that is a big possibility, wait and see for Crawford right now, and it's a win-win situation. But it also make sense for him to sign with PBC because it is one of premier boxing promotion and they have a complete line up of good welterweight.
And by Spence winning against Ugas, and then Crawford signing with PBC because he wanted to get Spence, then that is a big possibility. But for now, Crawford is going to watch the fight for sure and decide after the fight itself.
Personally I have never liked fighters that spend their time avoiding other boxers, Spence should spend his time trying to find a way to beat Crawford instead of avoiding him, as this not only reduces his reputation among the boxing community but it also makes him look as someone that has already lost when they have not even fought at all, and even if he was indeed beaten by Crawford at least he would give the fans what they were looking for, which is for the best boxers to fight each other in a mega fight.