I'm sure Eddie has garnered legions of brand-new fans and followers of late which, let's face it, is the entire point. Narcissistic show-offs don't stop being narcissistic show-offs just because they're ageing, they have to do ever-more outrageously narcissistic show-off things to remain, in their own heads at least, just as important as they've ever been.
I suppose the only surprise, for me as a one-time enjoyer of his comedy output, is that Eddie Izzard is actually quite boringly unimaginative, isn't being 'outrageous', and has clearly run right out of ideas as to how to remain creatively relevant. He's no more 'trans' than I'm an Olympic-class cross-country skier or the Duchess of Devonshire - he's desperately trying to stay 'famous' because being anything less than continually being noticed and commented upon for the way he looks or the things he says is, for people like him, worse than anything else he can imagine.