A: No. Patch 1.31 strictly uses the classic SD (Standard Definition) graphics. If you want the new HD models, you must use Reforged (1.32+).
If you need 1.31 , consider:
When Blizzard launched Warcraft III: Reforged , they updated the Battle.net servers to only support the new client. This meant that if you owned the original CD keys and installed the game today via the official launcher, you would be forced to download the 30GB+ Reforged client. Warcraft 3 Tft 1.31 Download