Definitely looking likely to crack the the top 100 this year. I became a fan of his right before he got injured and dropped down the rankings, so it's great to see him not just fit again but better than ever.
RG will be interesting. He is in the Qualifying draw, but will he get a WC for the main draw? Depends how he performs between now and then I guess. I expect he'll have to go through qualifying.
If I was Alex Corretja, I would definitely consider him for Davis Cup when he does crack the Top 100. He seems to know the ways of the Top 100 players well. Wins over Benneteau, Goffin, Haase wtc.