Board Thread:Suggestions forum/@comment-184.61.125.187-20171221191555/@comment-33185350-20171221213740

I think they may be added sometime in the far future. The Eras of Arda: The First Age Server has the enchanted isles and Tol Eressëa on the edge of Valinor added, but not Valinor [Undying Lands] itself in the submod.

In The Silmarillion I think it explains that the world becomes round so mariners can no longer sail to Valinor, but there is still a straight pathway leading from Middle-earth to Valinor that can be found by those with skill or the goodwill of the Valar.