This echoes my view point, too. Remember, CI wasn't everywhere before you couldn't play glacier decks and ICE didn't matter (also VLC).
CI is dominant now but that doesn't necessarily mean it won't slunk back to being reasonable afterwards.
I think putting AD on the MWL with no other changes almost certainly good enough.
I think I will put Lady back on, so that it's a bit closer to the state of things that was played at the very diverse event. It can be evaluated to be taken off later, after we've got more data. Unrestricting it and Prepaid might be too heavyhanded.
Anyway, on top of these changes I think it's a good idea to 'lock' them in place for at least two weeks. A sense of stability is a good thing, and it also gives a reasonable amount of time to evaluate the state of things. You don't want to fire up a game and somebody tells you your deck is no longer legal under this rule set or whatever. I'm going to add AD, put Lady back on, and 'lock' this list in place until the 10th of April.
I think we can all agree that FFG aren't good at telling us when these periods of stability are, or when they plan on changing their restricted lists, and that's a tradition I don't plan on continuing. Saying "changes, or the lack thereof are always going to happen on these dates that you'll know in advance" is a good thing.