From the Riverside Facebook page:
We’d like to thank you again for your friendship and support throughout this most tragic time for us and we’d like to officially announce that we have made a decision about our future.
We have decided that we are not going to do a casting for a new guitarist. Thus we have ceased to be a quartet and have become a trio. In this line-up we will prepare our new studio album. Both in the recording studio and on tour – if we get back to touring – we will be playing with session guitarists, who are our friends, whom we know and like. But the line-up of Riverside will be as shown in the picture.
Yes, we do realise that this is not going to be the same band. We know that for many of you the story of Riverside ends here, this year, and that “Eye of the Soundscape” might be the last Riverside album you’ll buy. We know that some of you can’t imagine this band without the characteristic guitar of Piotr Grudziński and for you Riverside has ceased to exist. But our story is not over yet; with a flaw, with a scar, with a wealth of new experiences, we have decided to go on.