ASE had a version of official that only allowed transfer between one of each map, so each cluster would only have one island, one scorched, one aberration, etc.
Me and my crew REALLY miss this style of play, because diplomacy with the little guy actually mattered, you could overthrow the alpha if you had the grit, smarts, and stealth, and every choice actually mattered - you weren't at the mercy of one of a hundred nameless megatribes with infinite resources and hours.
As a resident of ASE's NA-PVP-CROSSARK8 serverset, I can't say I'll (or my tribe) will play ark again unless these crossark clusters are released.
To reiterate, the adrenaline of your first 130 giga, knowing a tribe of similar or larger size was coming for you, but not when, forming non-aggression and defensive pacts, and being able to get revenge through intel-sharing in an intricate and ever shifting web of alliances was the best, and big officials will never be able to replicate that for the average player like crossark could.