Why would they need to if they are apparently on track to be part of JnJ/Google?
I hope they are, but if they are and someone with big pockets is committed to their platform, why not just announce it, fund it, and get it done? A big ticket M/A company is not going to let them go under because they are inept at building speculative market cash, are they?
I realize they did raise funds last time, but that was when the timeline looked like a short-term big payoff to the investors.