Everything is changing. You're right. Central news are decamping at some point in December to somewhere else in 22 Gas Street while their set is stripped out from Studio West.
Everything? Calendar has just moved into a slightly revamped version of what we have now (with the new sofas and higher desk), so I assumed the basic set-up we have now was remaining, just that the graphics and colours were changing.
As I understand it, Calendar have adopted bits from other regions that used to operate two sets, and they have 2 old sofas and 1 of the old Central East sofas, the desk itself I'm not sure where it came but it's not hard to strike a new set!
The source for this information was an email to ITV Central when I asked them to tone down the yellow as it was getting a bit garish (still is but they listened) - they told me change was gonna happen towards the end of the year in the new colour palette that should look nicer!
If things were going to stay the same Central's set would be getting on for a decade old, and it looks it!