hi everyone.. need your opinion.
currently i'm using 3GS (still surviving yo!), but been thinking wanna get a new 5S 32Gb (but am still saving for it, so i'll probably only be able to get a new phone in another 4 to 5 months). Then i read news saying iphone 6 will be coming out maybe in mid year or sept.

Current situation of phone:
- had water damage bout 16 months ago, but manage to revive it surprisingly.
- lately the phone will shut down by itself even my batt is more than 80% (usually happens when i try to use the camera/instagram, and i'll need to use a charger to turn it back on properly, if i didn't use a charger it will still turn off when i try to use any app) BUT it doesn't happen everyday.

So my question is:
- should i get 5s or should i wait for 6?
- in the mean time should i fix my 3gs? but im not sure whether can it be fix tho :/ or just leave em be and just carry a powerbank with me.

Hope you guys can give me some opinion regarding this