The development of Samsung, the next generation tablet "SM-T210" and "SM-T310"

It is a developing next-generation tablet, "SM-T210" and "SM-T310" is now clear that Samsung.
Model number convention SM-T in the model number Samsung rules to apply from next-generation tablet, the rumored iPad mini 2 and iPad 5 It is said to be the new terminal to be against. It has been reported product name and also be changed to "Galaxy S Tab" from the conventional "Galaxy Tab" further.
Presence SM-T210, SMT210R, SM-T210X, SM-T211, SM-T215, SM-T310, SM-T310, SM-T310X, the SM-T311, SM-T312, SM-T315 has been confirmed at this time . Difference of one digit at the end or will stems from the communication system?
I think do I get this with any terminal together, and hope to follow-up.
Source: Samsung