While we still don't have an official release date, we can take solace in the fact that Axiom Verge is officially in certification for Vita. Should hopefully have an update with a solid release date soon. In other non-handheld news, it's also coming to Wii U and Xbox One.
Update: Axiom Verge is coming to Vita on April 19.
Axiom Verge Vita is in certification! Also coming out soon to Wii U and Xbox One!https://t.co/dqcVXk6FzO— Axiom Verge (@AxiomVerge) March 14, 2016