I signed up this afternoon. I'm very excited about it even though it's at least 15 months away. We became aware of it when we saw Lin-Manuel Miranda on Last Week Tonight but apart from Graham Norton playing 1 song a few weeks ago I'd not heard anything really about it over here at all.
DH is less convinced about if it will be popular over here but I pointed out that Eva Peron was hardly a well known figure before Evita and Les Mis hardly sounds like great musical material so it could do well. On the other hand a lot of really popular Broadway stuff doesn't always hit the mark with the West End audience (Rent, The Producers off the top of my head both had much shorter runs than on Broadway).