Firstly, you need, from what I can tell, to be able to afford the programme, I've followed the 2016 thread loosely and I haven't seen much discussion around the loan guarantee that Easyjet says they offer to the strongest candidates. Perhaps the Q&A will have reveal how many received that funding last year?
Otherwise, it's a tricky one. On one hand, the industry would appear to be pretty strong at the moment though the potential impact from Brexit is unknown. On the other hand, if you wait and it opens next year with the same rule, a lot of very capable people won't be applying and there's only going to be so many people who are interested in the programme, able to afford it, yet very strong applicants.
For the record, I currently have no intention of applying since I'm on a totally different training programme altogether that has little to do with aviation.