NEED YOUR OPINION!

Hey guys,
i am junior,11th grade, and i knew that the new redesigned sat will be in the spring of 2016 which means sat1 of may and june of next year will be the new sat.
i needed may and june for sat1 next year but as it going to be a new sat i cant regster in it because if i did the score of the old ones will be canceled and like that my chances of getting a high score is reduced
but for ths year is it better to go for may and june as sat1 because i wont be able to register in them next year or should i take june of this year as sat2 bettter? I mean is it necessary to try sat2 this year?
if i took sat1 for may and june this year, next year i will take tham as sat2…is it better like that i need your opinions please.
moreover, why will the new redisgned sat be applied on seniors of 2016? its hard for them and i think few will only register for it.