None of these will fly but it isn't actually necessary if you consider:
a) safe standing would be plenty
b) the modest extension otherwise needed could be accommodated with WBR in place as is.
The kop can't be taken back much further because of sight distances.
I think i've read something you wrote on this before Peter, so had heard the above before, all fair points. I'd be interested in what you think re the below though
1) Would the potential re-routing of the WBR do anything in terms of helping the 'transport infrastructure' issues that the stadium has over around 65K (which would be a hurdle to safe standing)
2) could there be further commercial potential, either for the area/council or the club if it were rerouted? I'm thinking hotels, restaurants, shopping or even property.
3) Could a reformed Kop have the same and therefore could it be made to 'pay' for itself in some way?
4) Dortmund have made their 'Yellow Wall' a real selling point the last few years. If, and it's a big if at this point, safe standing is introduced, I could see a commercial argument for Liverpool having 'the biggest Kop in Europe' or the World. Don't get me wrong, it's already iconic, but is there potential to make it more iconic in some way? I suspect there's some serious kudos could be earned by the owners with a bit of creativity and the flexibility of the council.
I do really like that Yara park idea, having the stadium sit in woodland, maybe with public sports facilities etc dotted around like you see in the US. Whether it's feasible I don't know.
I think we are years off them touching the Kop to be honest, if at all, there'd be a lot more financial sense it trying to do the Kemlyn. Incidentally I saw a poster on Skyscraper city mention that the club were working with housing association that owned the houses on the skerries to potentially allow expanding there to be an option. I've never read that anywhere else, have my doubts if it's true.