What I love in the "old" L5R game, among other obvoius things people have already written about, is the fact that while there are 4 main victory conditions, there are in fact many more ways to achieve victories. Military victory - we have bliltz, swarm, big naked units, big attachments, shugenjas with spells, movement shenanigans, action phase control... Honor victory - we gain honor with courtiers, with military units, shugenjas, we have duels, action phase effects, battlefield effects, battle resolution, dynasty gains... Dishonor follows pretty much the same path. We can also switch from one condition to another...
Those are subtleties that constitute the "old' game. I'd miss them very much, should they be gone from the future release..