What about Manu Ginobili? He's considering retirement too isn't he? And he is a future hall of famer as well.
I'm not sure if Manu makes the HoF. On the face of it he doesn't. 2 time All Star. Never averaged 20 ppg. Never averaged 5 rebounds a game. Never averaged 5 assists a game. Started only 1/3rd of the games he's ever played in. His core stats are quite good but not anywhere near hall-worthy.
Because he was on great teams (and he was a significant part of those teams) many advanced metrics like win shares like him quite a bit. Of course, he also has the championships. But it's going to be tough to put an off-the-bench guy with decent but not great statistics in the HoF. Not to mention that Parker and Duncan are already locks.
If this were the older days (like the Celtics players of the 60s), he'd have a better chance. But in a 30 team league with guys who have markedly better statistics? He'll just be seen as a very good but complimentary role player and to get in the HOF he's going to have to buy a ticket like most everyone else. If he does get in, he'll get in like Dennis Rodman got in - on the coattails of better players and being fortunate enough to play with all-time greats.
Basketball Hall of Fame, not NBA Hall of Fame, that also includes:
Drazen Petrovic
Sarunas Marciulionis
Arvydas Sabonis
Yao Ming
This ain't that shabby of a resume:
Career highlights and awards
4× NBA champion (2003, 2005, 2007, 2014)
1x Olympic Gold Medal (2004)
2× NBA All-Star (2005, 2011)
2× All-NBA Third Team (2008, 2011)
NBA Sixth Man of the Year (2008)
NBA All-Rookie Second Team (2003)
FIBA Americas Championship MVP (2001)
Euroleague champion (2001)
Euroleague Finals MVP (2001)
All-Euroleague First Team (2002)
Italian Cup MVP (2002)
2× Italian League MVP (2001, 2002)
2× Olimpia de Oro (2003, 2004)
Diamond Konex Award (2010)
50 Greatest Euroleague Contributors (2008)
It might be a while though. Toni Kukoc with a similar resume is still waiting to get in, but both will get in eventually.