So, it very much has the potential to be its own currency. It might even be used to back other assets in the future, though I don’t know of any set plans for this. (Also the name of XEM was chosen to start with an “X” so for in the future it can actually be a recognized currency and traded on FX platforms)
XEM itself has a lot more utility than Bitcoin in its versatility of actions. It can be used to make more kinds of transactions, can be secured by a better form of multisig, can be used to create assets and namespaces, can be used to write messages on the chain, none of which Bitcoin can natively do, all of which are things that are being hacked into Bitcoin on top of the main code so it can kind of do those things. If intrinsic value is determined by the tricks up one’s sleeve, and ways to potential earn more money, then XEM has a lot more tricks.
These additional traits, if they get to be used by real world businesses, can help to raise and stabilize the value of XEM. At the moment of writing this, those real world businesses using XEM are exactly 0. Hahahaha. But this is a great platform for future businesses to build on, and some people can see the code and see the vision and are speculating on XEM, which I would say is the main value of XEM at the moment. Not just XEM but basically every crypto that I know of except Bitcoin are being primarily only speculated on. Bitcoin actually has real third party business being run from its chain. Of course we fully intend that for NEM too or we wouldn’t be here.