by accook
Dividing the continents up a different way could make things interesting, but I think there are too many continent bonuses, and you will need to account for the bonuses being easier to get.This board has +43 in total continent bonuses, whereas standard Risk has +24. I would suggest dividing all of the bonuses in half, without rounding off (so the new Australia's +3 would become +1.5; India's +1 would become +0.5), but where you can only get a bonus in whole numbers. In this case, controlling only Australia would be worth +1 and only India +0, but together they would make +2.
This would create +20 in ready continent bonuses---slightly less than standard, but easier to get---and an additional +7 in possibly round-up value---slightly more than standard, but spread across the board.
You could even add three +0.5 and three -0.5 stickers as Held On rewards to be opened with the 9th Minor City pack.
(For spoiler rules based on larger continents, you could use the "natural" continent designations from standard Risk, or else pre-designate slightly modified continent groupings.)
This would be a pretty simple change, introducing some new strategies, but unlikely to break the board.