What a mess!
1) Both 410 models are on sale everywhere. This to me clearly is to get rid of all stocks of "old" cars. This does not mean that they are bad cars! It's a very good deal, and there will be a lot of happy customers! Yes, it's always annoying when you've just bought something at full price, just to see it on sale a week later... but that's life. Rather you should be happy for those getting a good deal now. If you can't live with that, you'll just have to wait forever for that ultimate deal... And if shops adverted a coming sale, they'd ONLY sell when having the sale >> bankrupt in no time...
2) As they now make & sell big bore shocks, of course that will be included in the new version kits. And since the manufacturer still have not released any official info they probably have not finalized everything (spec, price, delivery time etc). I'm sure they are doing their best, just be patient.
3) There will always be rumours! Some like it, some don't. I myself was surprised at how secret TLR managed to keep the 22 up to release. But this was an exception, not the rule. You simply cannot critizise Durango for not releasing news because there are rumours. Take a pill & chill...