The last eruption was in 9. February 1946 so if the mean period between outburst is approx. 79.5 years, then the outburst should be ( 9. February 1946 ) + ( 79 years and 6 months ) = 2025 9. August.
If the uncertainty is +/- 5 months we should expect an outburst any time now before 9. January .
I hope as soon as possible because it is getting more difficult to see because the horizon comes fast in the early evening. ( It is circumpolar north of 65° )

Time: 16:38UT 2025-10-28 Exp.3 x 5sec
Telescope: 0.254m f/5.8 ST-10XME CCD -30°C 0.95"/pix
Odd Trondal Obs.code 238 (Uranium). Oslo Norway.