So I wonder what is new about the Leopold TKL other than the key caps?
Probably nothing unless they decide to so something with the stabilizers because of customer reaction (I doubt it).
BTW, that site is selling current Leo TKL's for $87.50 US. God only knows what shipping would be, probably around $30 is my guess.
Between that and brokerage fees, it really wouldn't be worth it.
Apart from the stem the new PBT keys look identical to Topre keycaps, and they have a lower height profile than the regular Leopold keys.
This would be pretty cool if it were the case that they were made by the same company. One of my favorite features of Topre is the caps.
Unfortunately, they will only be available in an 87-key layout at least initially.