Source: http://forum.worldoftanks.com/index....-the-gift-shop

Please note this concerns US server, but I think we can assume the same applies to the EU one (RU is probably an exception).
US developer Major_Rampage:

Howdy Tankers!

I know there has been a lot of discussion about the various premium tanks and what is available in the gift shop, each week when the specials come out.

When it comes to the following tanks, there is no current plan to release them back into the gift shop:

PzKpfw V-IV Alpha
KV-220 Beta
M6A2E1
PzKpfw V-IV
A-32
MTLS-1G14
BT-SV
SU-85I
PzKpfw II Ausf. J
PzKpfw IV Hydraulic
KV-220
WZ-111
PzKpfw 38H735 (f)
PzKpfw B2 740 (f)
Tetrarch
T1E6
Type 59
Type 62
KV-5


The Type59 G will never introduced to this server.
The T23 has been completely removed from the game. There are no plans to re-introduce it.
There are not plans to put the M3 Stuart Lend Lease in the gift shop, if we do re-introduce it, it would be part of the upcoming tutorials.

I know this not the answer many of you have been looking for, but I wanted to make sure you knew the status of these tanks

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