Kalnareff doesn't owe you anything. He gives us this wonderful content absolutely free and you have no right to demand anything from him. You could if you were a subscriber to his Patreon... although no, Patreon is more of a way to voluntarily support the author, unless otherwise indicated in the subscription levels. If you paid him in full for the creation of the game, yes, and you had an agreement that he would make a certain amount of content every three months, then yes. But I don't think that's the case, is it?
I think he can work at the pace he wants, especially given his recent arm injury. Three months, half a year, a year... it doesn’t matter. For me, the main thing is that he does the scenes not hastily in an attempt to meet the deadline, but well and with soul, as he always tries to do