Greetings Katero,
I have to agree with most of the opinions in regards to EU groups operating in smaller servers.
Most (not all) got various opportunities to head to Asura during the -Aeonic Surge Mode- simply because people there worked day and night to crack things up and shared their knowledge over Forums.
I personally admire Asura’s enthusiasm in providing an immersive experience first hand, yet it does draw “some” lines on who can actually join the pioneers of endgame.
If you’re returning from a long break, probably it’s best to try out few EU linkshells in your server and check how fast you can pick things up, I’m more than sure that Kylos will offer so much and demand nothing in return.
Leviathan is another option for you and you’re more than welcome to join, EU players here usually coordinate with some US players on some events during peak hours of EU (8 PM Uk Time) and the overlap usually happens around 10 PM, we are lucky to have this overlap since many of these US players are from the “older” generation who grow up playing this game, so they do have more time to operate with other time-zones.
Leviathan is a healthy server in terms of JP:EU:US ratios and they do treat one another with respect and exchange knowledge and strats, it might not show in shouts simply because it feels more like a family than anything else.
We also don’t do mercs and returning players can join in daily events [Vagary,Delve,Omen,UNM,Incrusion] and Aeonics.
Wishing you the best of luck.