This has been some of the most interesting debating I've seen in a while. Lets start with an answer to the thread OP.
Nothing. No new content, it will be a final patch End-Game Realm. You come here, you raid the content, and either keep raiding the content, PVP, or find a new home. - Maybe they will implement the ability to server transfer from one xpac to another. That would be cool.
Now, to talk about this odd debate that started, lets take a count of some facts:
- There was only a single Private Server ever that had sizable population without a Cash Shop. It is the exception, not the rule.
- Private Servers with Items in the Cash Shop tend to do better than Private Servers without items in the Cash Shop.
- Private Servers that offer items in the Cash Shop, but don't offer high level gear in the cash shop tend to be lower population than servers with high level gear in the shop.
- Green Geared Players with End Game weapons do not impact your ability to have fun on a server.
- Green Geared Players with End Game weapons are the reason you can play on this server at all.
- End Game weapons are for anyone on a private server. You are not a "real player" for raiding 2.4.3 more than a decade after it's released on a server that's no where close to what BC was at the same patch. The "real" BC players played more than a decade ago. End Game weapons are for anyone who can attain them in ways that are possible on a Private Server. That includes donation.
You want to be a "real" player, go play live. Not on a server with content and difficulty from a decade ago that isn't tuned the same and that is illegal. Go play "real" wow and you can be a "real player".
Me? I'm gonna enjoy this server because it's fun, regardless of donation system.