Please bring back World Leap Event: It would give our players more options rather than being forced to merge. If players want a server with higher/lower population, they can have it their way. The lack of overall population can only be resolved with things like advertising the game, streaming, etc. Merging would just be a temporary "band-aid" fix for this issue.
I don't want a merge. My few points on the matter: (1) you lose ranks, (2) item values fluctuate (e.g. Outlaw Hearts nearly doubled in value post-bera transfer), (3) you can lose your guild name, (4) more lag/stability issues due to higher player volume, (5) less training map availability for popular spots (especially during 2x), (6) not everyone wants a higher populated server.
I would like to bring back a world transfer and let players choose what server they want. That way if they want higher population, they can go to Bera or Scania, etc. and if they want less they can go to GRAZED, MYBCKN, etc... Overall player population will hit a high peak once June 20 rolls by due to the major update Ark; therefore, I don't see a need to combine servers.