Only thing that could stop down slide is good new TIER 1 license. Promise to obtain license no longer work.
IMO : IDCC did have a hard time to license TIER 1 company. That is why IDCC has to go to ITC to pursue the case. Litigations is only means to do it. I agree with IDCC to go to this route however revenue is decreasing and litigation cost is rising. Stock price suffers until then similar to 2G process in Ericsson.