I quickly glanced through the brochure and specs, but I see almost no differences at all with the previous RTB scopes (except that segmented memory is now standard, not an option, and that there is a new model number printed on the instrument's front). I am quite sure I must have overlooked other things, but I am still wondering if there are any substantial updates here.
For example this:
The new Rohde & Schwarz RTB 2 oscilloscope is MSO-ready, meaning no additional license is needed to utilize the 16 digital channels.
This enables seamless integration of both digital and analog signals, making it ideal for mixed-signal analysis.
In the past they dream to sell an RTB for 8000Euro with all licence, but nobody bought it. So they sold an xmas special price of 4000Euro with licence for free included.
But even this is expensive and they can not made all the past buyer angry only by made the RTB cheaper. So they give it a new paint and offer now
more features for the same price, make it effectively cheaper.
It is the marketing department.

However it is nice that it is possible to use the firmware. I did not expect it. I thought there will never comes a new firmware even if they had a not so
short buglist for the RTB. So it is a good surprise.
Or we can think in the other direction. Bottom up. I these days a scope is defined by 90% of the firmware in CPU and in the FPGA. You can made
a better scope by invest developing hours for the programmer. Expecially if you believe that many feature not in the RTB that easily could be there, but
preserved for the more expensive scopes. If this is true they should ask for money for the update of give the basis update for free that will offer
the possibility to buy more expensive features in future. We will see.

Olaf