I'm a little torn by this, too. I know about where MetalHeadMike's going with his ideas about modding a 20th Shiva, and based on what Joe's said, the Eclipse might get there. I'm not convinced, yet, but of course I haven't played one yet.
On the other hand, I know what chasintonez's talking about, too. I don't own a Helios, but it's close to the top of my GAS-list. I love the openness, the dynamics, the vintage Marshall-ness for lack of a better word, that the Helios has. If the Eclipse is too far away from that, it's a non-starter for me.
In my case, I really don't care about being able to switch between the inputs of the original Helios. I've never had a problem playing out with single channel amps. I can get what I need out of pedals, and if I need more than that, I've got several channel switchers around that are more than up to the task.
The thing I'm most interested in is getting a little bit more gain out of the original Helios. Not a lot more, just a little more saturation. chasintonez's 80's+ idea sounds about right to me. What I don't need is a ton more gain. I have an Uber for that. I have a 20th Shiva which is an absolute beast.
Then again, I'm not sure how much I'd use the Plexi input on the Helios, anyway. I have an XTC that does that, and if that's not enough, I have several vintage Marshall's that will do that.
So, if the Eclipse still has all the sounds of the original Helios' Hot input, both 70's and 80's modes, if it can do that, I'm interested. The extra gain stages would probably be more useful for me than the Plexi input on the Helios. But, if the Eclipse can't do those sounds, then I'm out. I can get the other sounds out of my other Bogners.
The one thing I want to know is... can the Eclipse do the Hot 70's and Hot 80's modes of the Helios as well as the original Helios???