I'm not sure if GPS are firmly in the contenders seat this year, will have to wait and see how these first few rounds go.
In terms of players brought in, I think a number of guys from the 2018 side have returned after some time off, Matt Mafi joins from Brothers and will replace Maile who's gone to Sunnybank, and I've heard Krisi Kuridrani is playing but haven't been down to confirm that.
Shane Arnold and Steve Meehan will bring a different vibe back to the club. I imagine their goals aren't necessarily aligned to a win now mentality. There is lots of work to do to get the Colts program on track, and bring back some whole club success that was really prevalent during 2005 - 2015 when the club was winning plenty of Reggies comps and grades.
I've heard Maile has done a full preseason with GPS and is playing reserve grade this week behind Mafi.