The 19-man squads are out, and it looks like there is some news.

Oxford as on the RFL website:
Hughes, Nathaniel, Brooker, Hoggins, Lewsley, Allan, Scott, Evans, Canterbury, Igbinedion, Decaro, Morris, Flintham, Hayes, Burnett, Davies, Dobek, Carter, T Thornton

Presumably that's Danny Allan back from a very long lay-off, and Luke Evans from a shorter one.

Scott seems most likely to be a welcome return for Josh Scott as League Express said he was on the mend. Unlikely to be Steve Scott as Fryston play in the BARLA National Cup on Saturday. Also, I wouldn't expect many Batley players to be available as they have two games this weekend, but they do have a second-rower Sam Scott who was out through injury (and probably still out). Batley also have a Dave Scott but he's in their team at the moment.
[Edit: In the online programme, Tim Rumford said that he was hopeful that Josh Scott would return for this game.

Morris - well I could list every Morris who has played rugby league (like Josh or Brett from a new dual reg agreement with another team of Bulldogs?). I don't think it can be Sean so maybe Jonny is back? A remote possibility is that Castleford have a 16-year-old centre Evan Morris.
[Second edit - it really is Sean Morris, with info here:
[url:34j8h0lqhttp://www.scorpionsrl.com/News/Article/44572[/url

South Wales Scorpions
Scrivens, Parker, Evans, Emanuelli, C Davies, Duffy, Hill, Vitalini, O Phillips, Sheridan, Gregory, Roets, B Phillips, Williams, R Davies, Wilde, Rawsthorne, Hema, Gaylor, Nelmes