Charteris needs to up his game massively to get back into contention for a place in the matchday 22. Bradley Davies and Alun-Wyn Jones are out in front as being our best locks, but behind them there's Ian Evans who's slowly getting back to some kind of form and Ryan Jones who's future looks set to be at lock. Charteris has been unlucky with injuries this past year or so, and like Evans he's taking some time to fully recover, but unlike Evans, he's never shown his full potential on the international stage.
Unfortunately apart from Lydiate and possibly Faletau, most of the Dragons players have shown serious weaknesses to their games this season, and that's going to harm their chances of being involved with Wales in the 6 nations and WC. Brew probably deserves another chance, but I'm a little concerned that he'll ultimately not be up to the task of international rugby, as I am with Fussell. Gavin Thomas fits squarely into this bracket imo, great regional player who simply cannot make the step up necessary. Tovey and Harries are two players I really like, but both have shown massive defensive defficiencies this season, Tovey's boot has also let him down in the last few games. Harries really needs to be playing on the wing though, playing fullback really isn't helping his Welsh prospects, because he's blatantly not equipped for the role, in the same way that Shane wouldn't be! Hurry back Martyn Thomas.
On current form, I'd therefore only pick 2 or 3 Dragons players to be involved with the Welsh squad, Lydiate, Faletau and possibly Brew depending on Shane and North's fitness and the form of Stoddard and Tom James.