Jolla has the discount price for licences on Xperia 10 IV and V, planned to be ready as an offer that runs until the end of June, as @rainemak wrote in this post: Enabling AppSupport for Sony Xperia 10 IV and 10 V - #81 by rainemak
So we can conclude that the aim is to publish viable commercial licences with minimum bugs within less than a month 
I’d say we can at least enjoy the prospect, june is very soon coming 