TL/DR
The major way the plot diverges in Rastdel concerns which characters live and die, who ends up running the city, and which sections of the city are left....unmolested.
It is reasonable to think who is left in charge will have major ramifications later- they just haven't been borne out yet.
The specific outcomes of how the the battle went and the city is are very minor considerations at this point- but there is some code for it.
Moving to talking about how things diverge.
If I got it right Patricia(serving rowan) is able to gather and save valuable asset which would serve in rebuilding and making Rastadel prosperous for most while Jacques will serve the tradesmen and make it a capitalistic hellhole, so in the long run Jacques will cause problems down the road as he's a viper waiting to strike and Patricia's won't as she is bound to serve. Not hard to see who is better, werden is the WORST choice as he represents the decadent nobilty and the worst aspects of Solanse, simply put he's an old dog who won't learn so do the best thing and kill the old fart as he won't look mercifully to you even if you do save the realm in the future he'll exile you or execute you.
Something I found in my old folder was that we are missing a character named Simone in Rastedel, Rein was eager in writing her arc.
ohh here's a treat for those new and for those who forgot
Probably gonna go for semi-evil Rowan that wants to overthrown twins. Which means Patricia is probably a good choice to pick because Rowan can control her directly (plus sex scenes), right? Not sure what I should do with Delane. Saving her gives sex scenes for her and Rowan, but orcs will not like you, maybe better option to give her to Ulcro who might (either himself or because Delane has influence on him) will be your ally too, or is Tarish better?
Do what you feel like, this is a corruption game where you can have sex with most characters and delane fate is upto you, if you fancy her take her if not there are worse fate for her in the long run her fate won't matter much but I do see her pop up later on in either Act 2 or 3 when dealing with those in the holy capital or somewhere else depending where this war takes us.
This is gut feeling more than anything, but I get the feeling that Tarish is the best choice for undermining the chaos forces in general, and Ulcto is the best choice if you want allies to help Rowan overthrow the twins and take their place.
Who becomes clan chief benefits the agenda of some specific people like
1)Ulcro = Except Rowan everyone wins majorly as Andras gets a competent orc general , Jezera gets to play diplomacy with Delane and Rowan gets a pat on his shoulder. (serving
Andras,
Jezera and
corrupted Rowan )
2)Batri =Andras gets to pillage and rape with a larger army (serving
Andras)
3)Tarish = Jezera mostly as she gets someone who sees eye to eye with her (serving
Jezera)
4)Tarish(delane escaped) = the orcish army is not fully united and tarish has a weak handle on the remaining tribe while Rowan could possibly have Delane help him later but this comes at the cost of raising suspicion with the twins and tarish. I see this benefit Rowan in weakening them as much as he could (Serving
Rowan)
I don't see Tarish undermining chaos far from it she's a kniving fox and better to have her close as she's like Jezera not impusive but inexperienced with war like Ulcro. Ulcro could be an ally but what if he's not and Delane manipulates him for power as well ?
The game has 3 routes from what I gather those being
i)Path of servitude
ii)Path of Heroism
iii)Path of Conquest
and we can speculate which actions best serve which route, while I see Ulcro possibly worth turning as a likely ally I'd rather not take the chance plus I like Delane(she's in my top 5 ) so I'm biased XD.