I would be worried, but my interest/excitement for the band had decreased a lot since Vector, to the point where I only checked the first single and didn't bother with the rest. I'll probably listen to the album once it's out, but I just don't like their current musical direction at all. They're just a fancy djent band at this point.
The Mountain showed such promise and their sound now sounds far from that.
I wouldn't read too much into "their sound now" - the only reason Virus's core sound is so similar to Vector (despite being a bit more varied) is that it's a direct sequel. The next album won't be, and so I would very much expect it to sound fairly different again.
I hope you're right, but it's not just Vector/Virus, their sound has been slowly morphing into this for a while now. I discovered Haken around 2011, just after Visions was released, but my introduction song was Celestial Elixir, and I loved it instantly. Then The Mountain came and that solidified them as one of my favorite bands at that time.
Restoration was really good and a nice change for those old songs, it was a nice taste of what things could be like for the, then, next album. Then Affinity arrived and there were songs I didn't care at all about, though I still enjoyed the album, it wasn't as much as the previous ones.
Then Vector came and I was disappointed by their musical direction once again and that I was disliking a few songs on a very short album. Not just being "meh" about them, but actually disliking songs.
Now Virus seems to continue those choices even further and, while I've only listened to the first single, I'm not excited at all about this, and that song did absolutely nothing for me vs The Good Doctor which was a fun/catchy single.