I have seen a spell that allows to place a Monolith (ancient monolith I think it is the name, not sure sorry) that acts like an outpost, at a cost of 50 mana. I'm not sure if it was in previous builds, or it is only from last .992
The good things:
- IT allows to stop the pioneer spamming needed to increase ZoC in zones not suitable for cities. Not only to get resources, but to ocupy land
- It acts exactly the same that the pioneer outpost, and can be upgraded (armory, stables etc...)
- The cost of 50 mana...I find it reasonable.
- Inmediate...no need units to go, just an empty tile, and hover with the mouse.
The bad things:
- To magically put an outpost in an empty tile and suddenly I gain that ZoC...I'm not used to it, I find it a bit "out of the sense of the game".
- I find this like a patch solution for the pioneer spamming. If that was the idea, now nobody will use pioneers in building outposts...unless not enough mana...
- ¿Expansion balance can be affected.? Now we can use cities for gildar and pioneers, and mana for monolith, so it will be very fast to expand (that is what i'm checking in my last game).
Do you find this introduces an interesting alternative to the pioeneer spamming, or on the other side it can be disbalancing?
Does the AI uses it too? Will we see land fighting through monoliths? 
It all seems to take to the same place: Outposts should be buildable by pioneers at a cost of 50-100 gildar and not get consumed in the process.
And this spell could be a good alternative for paying in mana instead of in gildar. If 100 mana = 100 gildar (Alchemy spell) then the costs could be easy to balance.
What do you think about this spell?