Most likely the Onix 2 is coming out this winter. This is the future line of Humminbird so, I highly doubt they are going backward to old technology (Legacy/Helix). I run both Onix and Helix and they are not really comparable units as they were designed to be very different. As a previous poster mentioned, just the SI/DI transducer makes it worth the upgrade.
Onix is a significant step up from the Helix series especially if you use DI and SI a lot. Can’t wait for the next Onix unit to come out. I also believe they will bring the costs down as well…as this was one of the main reasons for poor sales. Another reason for poor sales was the fact that they launched it before the bugs were worked out and it got off to a very rough start because of this. After the 2.0 update the unit got to the way it should have been from the start. I am sure they learned a valuable lesson from that experience.
I am not sure if they will call it the Onix 2 or something different but, it is the future of Humminbird it sure looks like.