Circular economies in purely digital situations, where the enforcement of some useful rights/access, within the ecosystem, is done is a useful thing already.
I do find value in being able to run the game forever, with or without the corporate host.
Who sold the NFTs though? Who claimed the authority to grant the rights, collect your contribution? Who is the issuer? I don't know much about Decentraland, but I presume it's a scammy fundraiser thing for the developers who really control the ecosystem. They get to take these risks with KYC and money transmitter requirements because they don't have any of their own money or debt at stake.
If it was more of an immaculate conception, and the land rights were issued to the node operators or the first players or the first winners, then maybe we'd have something. Legitimate companies will explore this when the legal situation is clear but like I said before, their profit interests make it hard to want it. They'd rather be a central issuer of all access and items, than allow players to recycle the content amongst themselves.