Considering the current, more slimmed down, development resources I find it vastly important that we get as much possible content and utility out the assets already generated for Dust 514.

These other vehicles should most certainly be back in the game. In point of fact restoring their presence would improve the possibility of viable Vehicle vs Infantry balance. It is much harder to balance Proto AV vs STD Vehicles, the degrees are wrong.
Right now militia AV is a poor joke while MLT vehicles are are viable and useful simply because there are more degrees within the power curve of AV than of Vehicles. Push MLT AV to be viable in the current meta and the power curve makes Proto AV brokenly OP. The lack of types of vehicle also forces each one into more roles, making balance harder and requires that mods define the power curve very heavily allowing for more "MLT stacking" causing issues with the 'risk v reward' and the value of SP investments.

However with a restored vehicle field there are more 'knobs' to fiddle enabling more fine tuning and more diversity.
Content, balance, and game play would all be served by including these vehicles once more (and yes, they would need a balance pass... like the entire AV vs Vehicle situation does already).

0.02 ISK
Cross

Guys CCP Rattati said that he can do client updates!!! but he need to fix the op first, i hope the client side come back