You'll definitely want to get a guild invite first of all, and be set to the "plays" rank (basically just have an officer catch on online).
Then go to the SBI Immigration Fund thread and post to get your name on the list. Note: the first person to apply is basically getting a
free gem card for the transfer, courtesy of our own Arken, and it is first-come first-serve. I am right now going to PM the EU members I noticed in this thread over the last week that have not yet applied, because I don't want anyone to miss out. to miss out. You aren't wrong about the server transfer being steep.
In WvW we've settled into Tier 4. It's a lot of fun and we're not matched up against horrible soulless servers, but it's very static in terms of ranking. SBI doesn't have the Oceanic coverage to compete with SoS to any degree overnight, so we've competed for 2nd place with CD every week for the last month. Right now we're actually in 3rd for the week, and I personally wouldn't mind dropping down to 5 for a week or two for a chance at glorious victory. Either way, I like this a lot more than being in Tier 1, for my preferences. No queues but a good population and some talented commanders.
In PvE, all the NA servers are pretty packed with activity. No one has numbers, but my perception is that the big world events are busier every time I go to one.
Hope to see you in-game!