I can't really see that happening given the security concerns and need to test the modems on the network* (let alone supporting them)
I suspect what this might mean is that we see is some better hardware in general eventually, as the same company owning cable networks in multiple countries could well mean they try to bring all their networks into line with each other so they can all use the same basic hardware...
Rather like NTL was doing up to, and after it merged with BY when they were both using hodgepodge networks from previous acquisitions, and eventually got pretty much their entire system to run on the same hardware and software.
IIRC the V2 Superhub is being trialed now (and made by a completely different supplier), so hopefully you'll be able to swap to that at some point.
*One of the reasons they moved to the Superhub was partly because they were phasing out the dozen or so older models that were on the network (I had an original 3com CMX modem, then a 3com Tailfin, then the NTL 250, now the non superhub 50/100/120 modem, and there were about 8 other models used betweeb NTL and BY including some Motorola's).