Roglic is also coming https://www.wielerflits.nl/nieuws/dumoulin-krijgt-in-vuelta-het-gezelschap-van-roglic-en-kuss/I think Landa is close to the favourite for the Vuelta.
Reason being that he can put strong GT's together back to back. He did it Giro-Tour, most can only do Giro-Vuelta for GC. And the schedule is more congested this season.
Dumoulin has done this too (and is apparently riding the Vuelta), but having 2019 off might hurt him.
Not sure if he would try to defend the title or ride for Dumo. My pick would be 2 leaders, this time for real.
Vuelta being shorter works well for the Tdf riders who would have more fatigue. I guess this might be one of the reasons why the Vuelta organisers did it and not replacing the stages from NL, to bait more of them.