No Orc Nests to replace? And there will be a 20kp Ancient Knowledge as a daily prize.
I'll definitely use my event currency on days with AWKP instants (and maybe troop instants if they offer one I like). But, I want to continue to practice with the strategy of getting the most GP's. Dailies will be looked at as gravy. If I get the artifacts, I *might* place one in my Ch16 city where I'm thinking of retiring the Orc Nests anyway.
I haven't used Orc Nests in months (?a year?) in one city (parked at beginning of Ch18) with 2.8mil orcs. The other city has Orc Nests, but it's parked at the beginning of Ch16 with 4.6mil orcs. I am 100% combat in the Spire in both cities and 90% combat in the tourney. That reduces demand on orcs for me considerably. Tourney is increasing catering as I try to grow towards a sustainable 10K tourney pts (working on the Ch18 city right now at 8100pts). My playstyle is a bit odd; I've moved through chapters very slowly since ~Fairies or so, then I came to a screeching halt:
I parked my first city at beginning of 16 since I agreed with others that nothing beyond that interested me. Then, I saw the blue dragon AW at the end of Ch17. Just finished that chapter during the Winter Event and have the Dragon placed. I'm going to park here for the foreseeable future (It was a year at beginning of Ch16). This city also has a herd of ~33 unicorns as well as other buildings kept mainly because I like them. This city runs with zero houses, zero T1,2 or 3 factories except for event quests and FA's so my marble stay out more there now that those come so often. Will be able to start putting marble away once I hit the daily quests by the next event. Pop and regular goods come from event bldgs. Those bldgs will now be able to satisfy a daily 'gain goods' quest without the marble factories. I'll still need them for bracelets in FA's, though.
The Ch16 city is my more 'efficient' city. Built for combat from the start (with a year's experience in the first city) to do well in tourneys and events; that came to include Spire when it was released. Once I've got the 'pretty' city up to my tourney goal, it won't be as hard to get this one there. That's why I started with the one that was going to need the most work, lol! I'm going to have to run out of anything else to do or they're going to have to come up with something really special to get me to move the Ch16 city forward in research. Pretty/shiny/sparkly doesn't impress this city much, lol!