You like Durthu, have become the acknowledged master of nature & all forests, though actually becoming a Nature Spirit or Wood Elf is optional. The Nature Spirits and even some Wood Elves (like Orion), are said to be shaped rather than born, and this power is granted to you as well, allowing you to form Wood Elves & Nature Spirits just as Ariel sculpts Orion. All the wisdom and knowledge of Athel Loren is known to your tribe from the beginning, so you needn't worry about Worldroots manipulation & the Lores of Life & Beasts being lost arts.
While your Asrai are capable of building and maintaining a complex civilization autonomously from your commands, you still have complete control over them, with a power to control their minds similar to Drycha's manipulations. Your control over them is similar to the control one has in any other Hive Mind found here, though they're capable of independent thought, and will even gain their own personalities.
You and all your Asrai/Nature Spirits gain immortality & a powerful connection to nature, no matter what world you're on.