Albeit being signed as A104, the new section is dedicated as N1104 on the whole stretch as I read back in November. I fail to find the source now but if memory servers, it was planned as a temporary dedication only; for some 1 or 2 years
OSM is indicating N1104 now. Since I also don't know if the N2 segment between the "old" and the "new" A104 will be rededication as A104 too - I guess it might only happen in 1-2 years with the rededication of the temporary N1104 -
I will now extent the existing N1104 to the new section in HB - and remove A104Mes which has no TM traveler yet.
Edit: https://github.com/TravelMapping/HighwayData/pull/7109wikisara does also indicate the new freeway as N1104.
Nonetheless, I'll keep the thread open till the A104/A170 etc. rededication will have been implemented.