They will have.
The details are not known yes but as I wrote yesterday. Poland will play 2 games in the Netherlands and 3 in Poland on the first phase.
God, this already sounds like a train wreck. Why would you have to move a team in the first round to another country? It is one thing for a special opener, Poland in 2014 and Rome in 2018. But for two matches and then fly to another country. I feel sorry for the travel managers already.
This was one the things that I hated with Italy-Bulgaria last year, instead making it simple. They intermingled in the second round Pools from both countries from the first round, instead of just saying “These two Pools, stay in Italy and these two Pools stay in Bulgaria.” So teams may not have known if they were staying in Italy or going to Bulgaria until the final match was played.
Imagine as a fan that you wanted to watch the USA in the second round expecting to be in Italy and then going to Bulgaria. You were stuck in Italy (not in a bad way), not being able to watch them.
Some of the reasoning to intermingle was to keep the hosts in the tournament as long as possible, however Bulgaria had a tough first round and needed a lot of help to make the third round.
The more convoluted the design of this tournament it makes it worse for the fans and the teams to experience this action.