any possibility to "sync up" long time users to current add-on packs?

I'm missing something here.  On https://www.pianoteq.com/instrument_list Hohner and Electric Pianos are listed as separate instrument packs.  I do not see that Hohner is now included with Electric Pianos.

He does refer probably to the starter package which now in the electric piano flavour includes also the Hohner collection (+4 more instruments than before) besides R2 and W2. Hence is question.

Indeed but it far more convenient now compared to before where if you did chose the electric piano flavour you would have only 2 instruments instead of 6 and you could add the pianos later (possibly avoiding also the K2 which is a somewhat weaker model compared to the B for now). Who purchased before did not had this chance/luxury. And somebody who got the electric pianos or acoustic pianos before has to purchase the new sample pack. Not a big issue because it is just one sample pack but having this added to a starter bundle creates a discrepancy to those who purchased before and those who will in the future.
P.s.: It's so late I don't even know if what I wrote does make any sense. Forgive me if it doesn't.
P.p.s: Gosh, I wrote the answer in the report post instead of the thread. Time to quit the internet. Mods please ignore.

I'm pretty sure users have been sync'd up.  Your R1/W1 was upgraded to the R2/W2.

You just are mistakened that the Hohner belongs with the R2/W2.  The Hohner package replaced the Clavinet instrument and Clavinet users have been automatically upgraded to Hohner.  If you don't have the Clavinet, then you never had the Electric Pack which back then was purchasing Pianoteq w/ the initial instruments of R1/W1 + Clavinet (2 separate instrument add-ons each with their own upgrades).

As I understand it R2/W1 are one instrument and the Hohner collection is another instrument, so is the D4, the K2, the Model B, Kremsegg #1 etc. When you buy Pianoteq you can choose two instruments. It would be great if these could be any two instruments, but the way it works for now is that you can have R2/W1+Hohner or D4+K2: the electric bundle or the acoustic bundle. If you're into electric pianos the electric bundle is a great value starter. (Add your fave acoustic + all the freebies and you'll be busy for a long time.)

You should contact customer support if you feel something is not right or that you deserve a better deal. Pianoteq CS is excellent and they will sort you out if you have a reasonable request. Just keep in mind that the "Electric Pianos" instrument comprise the R2 & W1. The Hohner collection is another separate instrument pack.

And yes latecomers get a better deal in a way. We can download for free legacy instruments that used to be the bee's knees back in the day. But for the money you paid, you got years of use. It's a dated product now so it costs less or even nothing. Just like used old hardware: you can get the latest and greatest computer or digital camera of 5+ years ago for nothing from your local recycling depot or other people's trash, or for next to nothing on ebay, gumtree, garage sales and the like.

I think that if Modartt was to offer more flexibility for included instruments they'd have to raise the price to make it viable. And that would be a bad thing.

On a super-tight budget I think the Electric Pianos starter combined with all the free KIViR and Legacy instruments is a very generous and capable kit. (But really eventually you'd probably want to save up your pennies for the Model B or the Bluthner.) And for those not into electrics the D4/K2 + freebies are a great kit too.

The K2 is a very different instrument from the D4 so it makes sense to bundle them together.

Did you actually contact Modartt and raise your concerns with them?? [this is a user forum, not customer support]

actually no I didn't, I took the consensus view that I didn't really have a specific claim to make, it's just the way things are bundled.

I was just asking if I had missed some way to "sync up" or not, and the consensus answers is apparently not. That's okay. It's Pianoteq's business model and their choice to make.

I've got another very usable clav from NI buried somewhere in Komplete Ultimate. I'll go with that for a while and see how it goes.