I know the Adafruit PiOLED - 128x32 Monochrome OLED Add-on for Raspberry Pi is used to be a status display for the TiPi. Some months back, Matt had to update the OLED library as something changed. So it makes me wonder based on the update would other OLED such as an OLED 128x64 (HERE) work with out if wired correctly to the Pi3 for status without having to hack the current tipi image?
Different OLED displays are not software compatible.
The same technique and often library can be used to address a family of them, but they have different i2c addresses, and you're going to want to render the image displayed differently for the alternative form factor.
Instead of hacking it, you could contribute it.