Can I do anything with this LCD? I doubt it
You may (or not) may have found a datasheet. Unless you can find back the ID numbers on the actual device there's no way to tell with absolute certainty. Checking dimensional properties is the first job. If dimensions differ, it may be at best a variant, but also there: no certainty.
If you're confident enough that you have the right datasheet, scrutinize it. This may not be a pleasant task, especially when a datasheet has several hundreds of pages, but here the most interesting parts are easy to spot: the timing diagrams on pages 14 and 15 reveal a lot. Like the VSYNC and HSYNC. They tell you that this isn't a device with its own intelligence and memory, but rather that you have to drive it like a video signal, doing the refreshing yourself.
OTOH, like you said there are also the SDA and SCL connections, which hint at I2C, though the (again) timing diagram page 29 shows that it's more SPI-like (It lacks the I2C starting sequence). The pages following show that the serial interface isn't used for image data, but to program configuration registers.