I'm rather fond of this idea, but I believe it would be best implemented in maps that also were interactive (example: a flag you have to control so that you can have that portal of units walk across a bridge to join your others)

Thanks for the post, certainly an interesting idea.   Problem is, while priests do give experience, they also heal the players that they walk by...which can be extremely handy, and mean a huge difference in a fight with other demigods.   While it is true it generally isn't beneficial to get them because of the experience they give...they can be quite handy to make early pushes and control the central war flags.

Nonetheless, I like the idea of variation somehow with the portals.

some more ideas:

Queen of Thorns is too 1 dimensional.  All around I believe she is weak except for her bramble shield spell which I believe is over the top.     I propose you increase the recast time by something like 3seconds.   In exchange her minion buffing spells should also come with 1gold income increase everytime you get one of them.  Instead of having to get all the minion buffs and then end game being able to get the +4gold increase skill.   You would get +1gold then +2 gold then +3 gold as you took the skills.    This would make it so her closed form gameplay would still be support but not just consist of shield spamming.

  Then open form her building destruction spell uproot is just horrid imo.  for being in open form shes already nerfed a good deal then she uses a lot of mana to do mediocre-low damage to buildings.  This spell should also be a health drain like the Rooks spell.  This would give her some offensive staying power in her open form.

  I also believe Sedna should be looked at in the same way.  Where as her gameplay is too reliant on the heal.  Maybe try to wean her off of it a little bit. 

or maybe you could choose which portals your monsters come out.  but maybe you could only use your starting portals.

I had this idea back in beta, but I totally forgot about it!

The way I wanted it to work:

Ok. 
Red - Rallypoints
Blue - Team Grunts
Orange - Neutral Grunts
Yellow - End Points

I think you team should be able to drag the corners of these paths to other rallypoints. It should take effect the NEXT grunt wave.

Which would allow you to swap where they all go VERY easily. You have to end at the citidel obviously. And you have to have paths TO the rallypoints.
Hell, you could even do this...

Obviously only 1 team shown to prevent confusion...but you see what I mean.

I think it should use the SupCom move command look.
You know, this.

What do you think?

wow teseer nice job.   I would worry about this idea possibly being too complicated and not noob friendly if implemented wrong.

 if thats how it turned out that would probably be the case.  then again you could make it so your demigod didnt need to be next to the portal to operate it. took me about 2seconds to think up that idea .  

If you have the monsters all go down one path then maybe you give the opposing teams monsters and demigods a free lane to destroy.  or maybe you give the demigods in the lane you are over emphsizing a bunch of free xp and gold.  

I dont know how it would end up to tell the truth but your scenario is a plausible one but even so maybe that would open up more depth and strategy.

It's a cool idea and one that has been thought of by many people for many different games.

The problem with it, is that it doesn't support the core mechanic of Demigod, which is controlling your demigod. Instead it turns it into a rather trivial game of RTS chicken. There really isn't too much depth of strategy with this, and it just distracts from the rest of the game.

Cool idea for a game... that's not Demigod.

Stated far better than I have so far.