Good point of discussion but as I read, I've seen OP is with the project of concordium. Anyway, as for determining if bitcoin is an asset class depends to the people looking at it. If those are the people from the finance industry, there's always the division who believe and classify it as an asset and there will be those that will say that it's not.
With the advent of such practices, cryptocurrency may start being viewed more seriously in the legal world and smart contracts can be legally enforced too. So cryptocurrencies can probably finally be seen as an asset even according to local laws of that particular country.
Some countries can actually acknowledge bitcoin as an asset and in fact, there were some that have already did it.