When presenting roadmaps to customers, we use a "now, next, future" format. I've seen several product management consultants talk about this format, so I believe it's quite common.
In our case, we will display what is being released in the next 2 quarters, and then after that the next half year. We don't display dates in details past 6 months out for our customers.
I'd like to be able to use this type of display in Aha.