Hardware wise it should be possible for all the local SP's and their HLR's to support it but from an implementation point of view there is a LOT of work to be done.
Firstly the problem is that yes it's simless so there is some work to be done to link it's IMEI and/or ICC-ID to your current MSISDN and contact.
Then beyond that there is an entire backend of pricing and rating plans as well as RADIUS data and error checking, duplicate and other checking to be done.
So no its not as simple as flipping a switch and bam it works.
Which is why we weren't listed as supported and why it hasn't gone on sale here either.
All devices will switch to eSims in time so it will have to happen at some point.
Odds are the local SP'S weren't in the loop until Apple announced it and will only start working on it now.
Would make for a good article @rpm.
I wouldn't take the risk of buying one just yet.
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By the way all Sims are digital. This one is just embedded hence eSim.