If we get through we all know the first leg is away, but when will the dates come out Thursday morning ?
Last year it was about an hour after the end of the QFs ... Our and Arsenal's are the last two ties, so depending on if either of the games goes to extra time or penalties, I think we should know exactly by late night on Wednesday itself. The only thing to be confirmed is the date of the SF first leg. The time we already know will be 8pm for that, and with that announcement, the two fixtures automatically get confirmed in their current or new slots as above - so no need for PL announcement to wait for.