I'm sorry dazzilitchigirl, but I'm going to have to disagree with you there. What you have there is not evidence, but speculation.
1. There is a simple explanation for your first point. As far back as 1996, Bandai America have been basing their releases off Japanese ones. The P1 became the Generation 1, the Mori no Tamagotch became the Tamagotchi Ocean, etc. When Tamagotchi was relaunched back in 2004, the Tamagotchi Plus (Japan) became the Tamagotchi Connection (America). The V2 and V3 were different from the Keitai and Akai, yes, but this was because Bandai America didn't want to take that next technological step with the Mobile Phone access (instead they opted for codes and TamaTown on the V3), but even still the V2 and V3 used characters and concepts from a range of Japanese releases, and were modelled in design after the Plus and Keitai Tamagotchis. After that's, it's pretty obvious what they tried to do, by making American versions of each consecutive Japanese release. This stopped in 2008, when Bandai Japan made the Tamagotchi+Color. Bandai America didn't want to do this, so they made the Tamagotchi Music Star. That's the point in which sales of Tamagotchi in Japan began to increase (or at very least remain consistant), and sales of Tamagotchi in America began to decrease. The iD and iD L came in Japan, but all that Bandai America had to offer was another non-Color Tama-Go. The only reason that Bandai America stopped releasing Tamagotchis was because they knew that the only way to save the brand was to make a color screen one, and they did not want to do this. Nothing to do with paving the way for the TechPet.
2. This is really up to interpretation, but I took it as "we look forward to sharing new news with you" about Tamagotchi (Tamagotchi L.I.F.E.) and not about Bandai (TechPet). You may be right here though, but it still doesn't mean that it's a replacement, it's just good news for Bandai that they have a new product.
3. I don't really see the significance of this, it's a bit of a reach to be honest. The fact that Bandai have lost a product (Tamagotchi), therefore leaving room to add their new product (TechPet), proves nothing. What were they going to do, make a new section for TechPet and leave the former Tamagotchi one blank? Of course they would replace an old product with a new one. It's like saying if they lost Ben 10 and then gained a brand called "Kuddly Kittenz" (very bad product name, I know) that it was a replacement for Ben 10. Besides, it's called alphabetical order. TechPet is in the same spot as Tamagotchi used to be because they both begin with T, which comes after P for Power Rangers Megaforce.
4. This one made me chuckle a little. Bandai have been giving indirect, vague responses about Tamagotchi for many, many years now, even before the Tamagotchi Music Star was released, back in 2009.
Just because something is a virtual pet doesn't make it a Tamagotchi knock-off or replacement. This is not handheld, this is not able to evolve into a variety of crazy and loveable creatures, this is not remotely like a replacement for Tamagotchi. And, if it is intended to appeal to the Tamagotchi fans, then it's doing a very poor job of it. Tamagotchi fans do not want TechPet. Tamagotchi fans want Tamagotchi.
In my opinion, we won't be seeing anything like a Tamagotchi being released (by Bandai America at least) any time soon. Bandai America have clearly given the brand up to Sync Beatz, and they can't even make a Tamagotchi app without using their friends in Japan, so I doubt that they could make a new Tamagotchi release, let alone in color.