[bojan]

No. Or, not significantly I would say..
I took an image of eta in January this year.. and I checked it couple of nights ago, same area, same equipment, same exposure time.
Unfortunately, I made couple of mistakes during imaging session.. first stack was destroyed because the mount did not track.. then I repeated the photo session, but it seems I moved the focus ring, then I went in the house because the mosquitoes were quite hungry then the clouds rolled in and only then I noticed the images were badly out of focus..
But I was still able to compare the general appearance of photos between January and two days ago, and eta didn't look significantly brighter.