In 1.2, the following things will happen:
1) The cost for training will go down across all tiers.
2) The cost for tier 3 speeder models will go up across the board.
3) Certain landspeeder models will be removed from the game (the ones on sale right now).
The net result will be a significant reduction in level-up license training costs as well as a measurable reduction in the acquisition of your level 50 speeder. Purchasing additional speeders at level 50 will be more expensive, something you could call a luxury tax
TL;DR: If you want to game the system and save money, buy your tier 3 speeder now and wait to get the corresponding license after 1.2 goes live.
Thanks for the clarification. To bad however we have to wait for it for the measures to take effect until 1.2 goes live.