I hope we see an increase in real software parallelism, since that's the only real way out of this for the foreseeable future. Tacking on more cores is still an option we have, we're just having trouble using them right now in many contexts.
In the longer term, we'll hopefully see advancements that let us fundamentally change how logic processors are constructed, such as possibly photonic logic chips. Only a major shift will let us break through the current single-thread performance wall.