Buying a new phone, Moto Z play (India), question about SOC

A

AC Question

Hi,
I have my eyes on Moto Z Play here in India and I just have one question.

will snapdragon 625 be able to perform this smoothly after 18-20 months, as I will be definately keeping this phone for that much time, before I upgrade in future.

every other aspect is lovely of Z Play, the SOC is something I am concerned about as I would not like to buy a new phone after a year coz 625 cant handle apps or certain multitasking after that time. (Keeping in mind that I am a moderate user).

Kindly help, should I invest in this or put some more money and go for OP3 or 3T, for future proofness?

thanks in advance...