[@Peaceless] Probably not, but as you said, next world could be literally anything, and anyone with a massive disadvantage, say if someone were to specialize in Mario and end up in Dark Souls, they could take advantage of (what might be a poorly written explanation on my part) the Power Glove that we all have, to retrofit themselves with appropriate gear from that game world, so they'd lose access to most of their Mario powers, but in exchange, gain a standard toolset from Dark Souls to utilize.