11/20 UPDATE: The Cubs have selected the contracts of INF Arismendy Alcantara and RHP Dallas Beeler from AA Tennessee and both have been added to the Cubs MLB 40-man roster. Alcantara was rated the Cubs #7 prospect by Baseball America last week, and Beeler likely earned his spot on the 40 with a strong performance in the Arizona Fall League after missing much of the 2013 season with a finger injury.
Because they were eligible for selection in the Rule 5 Draft and were added to an MLB 40-man roster after August 15th, both Alcantara and Beeler have Draft Excluded status and cannot be outrighted to the minors until 20 days prior to MLB Opening Day, even if the Cubs decide they need one of the two roster slots sometime later during the off-season.
With the addition of Alcantara and Beeler, the Cubs MLB Reserve List now numbers 39 players (one slot is open).
Notable Cubs minor leaguers who will be eligible for selection in next month's Rule 5 Draft include OF Jae-Hoon Ha, RHP Matt Loosen, LHP Eric Jokisch, and 2B Gioskar Amaya.