No, I would not.

However what I would pay $25 for is additional character options for existing races and a fantasia to allow me to take advantage of that. However, since I already purchased the digital Stormblood Collectors edition, I feel that I have already paid my $25, and so expect that character creation nwill be enhanced and a fantasia will me made available when that happens.

I understand you're trying to gauge whether players will pay for the race to get an idea of how much they really want it. But to be honest I think you'll find more player who'd pay the fee if their Miqo'te could have their curves back than you will those who want Viera.