Source:http://ritastatusreport.blogspot.nl/2015/03/about-wt-e-100-replacement.html
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Hello warriors,
大家嚎，

we all know that at one point or another, WT E-100 is going to be replaced. But with what? Here’s something that might give you better clue. Yuri Pasholok on his blog provided a blueprint of one of the early versions of GW Panther, armed with a 15cm gun.
我们都知道，WT E-100会在某个时间点被换下去。但是换什么呢？下面给个提示。Yuri Pasholok在他的博客上发了一张自走豹的早期蓝图，主炮是15cm炮

Two variants were actually considered with two different muzzle brakes. The drawings are from November 1942.
当初考虑过两个版本，区别是炮口制退器不一样。这些图是在1942年的11月画的。

I reached out to Silentstalker and he confirmed it – these pictures correspond roughly to what he was shown during the meeting with Wargaming as a replacement candidate, only the gun was somewhat longer. A Panther hull with a very thin superstructure (15mm perhaps?) and a very powerful gun.
我找到了SS，向他进行了确认—这些图片和他当时和WG碰头开会的时候看到的用于替换的车辆的蓝图差不多，但是他当时看到的主炮要更长一点。豹子的底盘，战斗室很薄（15mm这样？），然后主炮很厉害。

There were a lot of Waffenträger projects, even on the Panther hull itself. Eventually, these projects would evolve into what we have in the game as GW Panther. Please note that even at this early stage, the gun module was detachable – it could be dismounted and mounted back on the ground, the role of the hull was to provide artillery mobility.
其实以前是有很多武器运输车的计划的，豹子底盘上就有很多了。这些计划最后的完成形态就是我们现在看到的游戏内的自走豹。注意，在这些计划的这个超早期阶段，这个炮是可以拆下来的—从车上卸下来然后装在地上，车身在这里扮演的角色是用来提供机动的。