I've gotten exactly 0 support on this idea both here and in the forums mostly from what I see as a lot of faulty logic. I'll touch upon what I think are the 3 top ones:
1. "I don't want to give my enemies an advantage. If I announce where I want to go, they'll take my spot from me." I think this is faulty because it assumes your spot is the only good spot, but mostly because once you actually put your town in the spot you've chosen, they'll find it anyway and if they are willing to go to war for it, they'll just take it from you. Declaring your spot ahead of time is actually beneficial because you'll find out who else wants your spot and then the two opposing sides can work together and find another spot equally as appealing so you both get a good spot (or at least you'll know who your enemy is). Finally, I'm not so much proposing we give the exact square but rather a region like the range you want your alliance to settle in.
2. "We can't work together. " We already do this all the time to keep the peace or punish aggressors. How can you say we can't do something we do all the time? This will only be true if we actually make the choice not to work together. It won't be because we can't, it will be because we choose not to.
3. "Not enough information." I wasn't proposing we start making decisions right now. Of course we would make the decisions once the biomes and factions are placed. I'm just bringing it up now so we could start discussing things. Good idea considering all the opposition.
Whether this idea can work or not, I'd appreciate a little more open mindedness and constructive thought thant I've seen so far. Instead of being the "party of no", how about some constructive counter ideas? One such counter idea I had was instead of planning ahead of time which spots we take, we just go about business as usaual until after eveyone has moved their towns and the time for using the spell has passed. We then wait for the town move feature the GMs have planned and we can then barter for land. We can trade spots (or not if you're 100% happy where your alliance is situated). This could be done on a much smaller scale and just between the two (or more) interested parties.