Board Thread:Suggestions forum/@comment-26429944-20180208085334/@comment-26149161-20180216200439

If they weren't all slaughtered, they would have merged and be so diluted as to hardly be Numenorean. It's possible their memory might have survived (assuming their descendants weren't exterminated themselves), but we're talking about a span of 3000 years at least--and without internet, databases, or writing, the knowledge of them would fade. Any memory that remained would be incredibly diluted, unimportant, and confused, and they certainly wouldn't have Adunaic, crossbows, Numenorean-style armor, metalworking skills, purebloods, castles, towers, anti-Sauron tendancies, or Numenorean-style  banners.

Ithilion, Discussions Moderator (Auta i lómë)