I just set up a 3.5.0 version in JIRA. While there is no real start of work on this version yet, there are a few items in JIRA that would benefit from being tagged with that version as there are breaking changes that we really can't implement well along 3.3.x and 3.4.x. I imagine that we will start 3.5.0 after our next release of 3.3.7/3.4.2 (couple of months or so to keep up with the release cadence we'd roughly agreed on).
