There's been no indication of no stripes. The only thing people've seen are massive close ups where you can see the stitching change grains and then the back of the kit – which doesn't rule out stripes at all.
Word is that they'll have a bit of a change next season, though. Apparently those fan forums are running up in Newcastle. People seem to want the disgusting green and brown combo and the tacky gold to come back. I personally reckon a green and navy or green and dark red would be the best combination. But that's me.