The transfers will open tomorrow morning (8/20) in the US only between surviving worlds (Brandywine, Gladden, Landroval, Arkenstone, Crickhollow). I encourage you to test the transfer feature with dummies characters created just for this reason on one of these worlds, so you won’t stress when it’s time to transfer your main and your whole Meneldor account.
You might be right, Nidalal, some quests with specific items might become a bit harder to complete. I remember having the same issue with an epic quest in the last release. But more players mean also more opportunity to form fellowships to complete group quests. I’m sure in the end the trade-off will be positive, even with all the trouble of the migrations.