In the unlimited realms, ATA should look at expanding the areas the higher level (10_12) nodes are spawned. There is a majority of players in these realms capable of hitting these nodes, so increasing the number would be nice.
I asked ATA about doing that through a help ticket (since they never talk here). Their reply was the limited number of rss/monsters is their way of limiting player progression. In other words, they most likely won't change it unless enough players complain about it.