Current consumption for RS485 transceivers?
Did you estimate the proportion of time your system will actually be transmitting data? In most applications, this is very small, proabably less than 1%. Most of the time, transceivers are just idle. That is why it isn't really specified, because it doesn't account for much in the total power consumption.

Also note that I saw it is actually specified for SN65HVD3085E in the datasheet: there is a line in chapter 6.7: P(avg) mentioning 205mW max when transmitting "a 50% duty cycle square wave at max specified signal rate". This makes about 40mA, which is a lot compared to the idle consumption, but, once again, when multiplied by the proportion of time you actually have to transmit data, certainly become negligible.

I didn't check the datasheets of all other transceivers you're referencing, but I saw it was indeed unmentioned on a few others. Anyway, it most certainly is in the same range, and seems to be in check with the graph you provided in your question, too.

In short: if you need to conserve power, you should focus on the protocol so you transmit a minimum amount of data, and only when absolutely necessary (avoid polling at frequent intervals). This is your best bet.