I think we will end up signing Ola Aina. Being Homegrown is a bonus. He will be cheap due to his contract being up in summer. Kabore is an option to send to Forest either permanent or loan deal, to soften Forest losing Aina. That will not free up a place in our squad though, so Walker could potentially still leave.
I think this is one of the deals that is easier to get completed in January. Forest are not playing in Europe and although they are valiantly challenging for top 4 in Prem they probably will not want to lose Aina for free, leaving January only chance to recoup a fee or they will press him to sign a new contract.