just a few questions that came up in our game (sorry for bad spelling its like 4am when i made the list)

do the effects of the winter card last all turn or are only applyed once at the begaining of the turn?
say if i have 4 food, and i make 5 units in one location dose one die or only if at the start of the turn
dose that happen?

suppremicy bonuses every turn possible?
if you start with your lowest cards can you get your bonus every card or only once per year?

reterting nutruel units can retreat in to areas that contain other nutreals?

more then one rune per hex?

mobilize(supremacy) to attempt to convert nuturals?
can you use this extra move to move one of your guys into a zone with nuturals and try to convert them?
since you have the option of not starting a battle when moving into nutural zones

Lord Aaron said:

Just at the beginning of Winter.

If you did for example 1 => 2 => 3 => 4 you would get the supremacy bonus for each card.

Retreating neutrals retreat into any adjacent uncontrolled area. An uncontrolled area is an area that is not controlled by a player.

Maximum one rune per hex (not counting Dragon Thrones)

Yes, while you can only start one battle with Mobilize, you could start one battle and then attempt diplomacy (and retreat if you failed) or vice versa.

Nice catch on the winter unit limit only taking place at the resolution of the card, and not throughout the whole season. We played it was limited the whole season, but I went back and re-read the rules and I think you're right on that.

"However, when this ability is resolved , the maximum number of units a player may have in each area is equal to his food dial's current space."