Yeah I think so, HTTT had the com lag EP which followed shortly after. In Rainbows has the bonus disc which came with it. I think an EP is likely. But I'm keeping my fingers crossed they keep working on the other songs an get another album out within in the year. The fact they don't appear to be going out on tour any time soon does give a hint they are going to work on something. Or they might just take some time off and sit at home. Who knows.