What new international treaty is this?? Furthermore if it exists then why have we not been asked to vote on it too? Smoke and mirrors in my opinion.
With regard to the solemn declaration, I'll take your point. But the fact is that NONE of the so-called guarantees hold any water legally. For them to do so would mean them being written into the Lisbon Treaty as Starlite correctly points out.
I think the guarantee issue needs clarification. In short, they were non-issues to begin with.
Last time we had claims from some sections of the No side, they were wrong. There was no impact on neutrality, there was no capacity to impose common taxes, there was no capacity to impose legalised abortion, etc.
When the government ran its "what went wrong" forum, these issue came up as being part of the reason.
Part of the reason why there has been no change to the text is because there's no need to, they were myths. As an extreme example, this would be akin to writing to the Attorney General for a guarantee that you cannot be imprisoned under Road Traffic Legislation for driving while wearing a Hawaiian Shirt. You'll get the guarantee, because no such provision exists, but the legislation doesn't have to be changed.
And that's what most of these guarantees are solemn statements that the Lisbon Treaty does not impose or affect those issue. They're pretty powerful guarantees too and would give Ireland a lot of weight in terms of any potential court rulings.
So in effect: there's no need for any new Treaty or text.
Some issues will, such as the commissioner one. And Europe did have to tread carefully with these. For example Ireland wanted the Treaty text changed to insist these weren't covered, unnecessary, but it'd look good for the folks back home. Of course states like the UK and Poland were apoplectic, if Ireland gets its way, they'd want their way too.
As for voting on a new Treaty, look out for the ballot, it may contain text there, I'm not sure. However, note that not all treaties require a referendum, the Supreme Court decision only relates to Foreign Policy Co-operation. There's even an argument that Lisbon may not actually need a referendum...