Im sure JM will implement this via Silk. They will probably add this in Item Mall. 5 Stat Point Change Ticket for probably like 50 silk. Each Stat Point Change Ticket will take 3 stat points from either str or int depending on which one you select. So for 50 Silk you can change 15 stat points. The reason why only 3 is because you are only able to distribute 3 per level.
So for 100 levels you would need to purchase like 20 of these, total of 1000 silk

So for only $100.00 you can go from pure int to pure str or vice versa

But you probably will have to change your skills as well.
