It would go without saying that you will be waiting in vain then. Apple has long since stated that they are no longer supporting the PPC platform. They ended hardware level support nearly four years ago (or was it longer?). And this year marks the final end for supporting the software.
Apple has always been ready to push forward when they felt it was worth the effort to do so. This has been Microsoft's main problem, and strength in some ways, over the years. Continiously supporting older and older platforms year after year, when technology has progressed so far ahead of where we where just 3 years ago, is detrimental to the company and ultimately to the user.
Yes, we all make sizable investments in your hardware and our software. I am using an Early 2008 MBP. I just learned that I am likely going to have to replace it next year at a cost of roughly $3,000.00, because there are now features in the OS that I can not make use of. However, the machine I will get for that amount of money in 2012 will far outclass whatever I bought in 2008.
Software in some ways moves even faster then hardware. I know it is painful to have to consider purchasing replacement software. But, that new software will undoubtably also have new features and functions that may well be usefull to you and may make you even more efficient, or make using them more enjoyable.
To the point of never upgrading because you spent X amount of dollars on some software more then 6, 7, or even 10 years ago, seems foolish. More likely then not, you will find better software available now, maybe for less money then way you spent back then. And that is not even covering the issue of security updates and patches.
This is the same mentality that lead to the issues when MS released Vista. We has all been so used to XP (since we have been using it for 9+ years) that we just expected all of our hardware, drivers, and software to work with Vista.. We where all so intrasigent to change after that long a span between releases. This goes for the PC makers as well. In fact they where worse. They simply used the same software and drivers they had created for XP and just slapped them into Vista. Vista was not bad, so much as the software we where using with it was bad. So it got a really bad name and many people got a really bad taste from it. So the press attacked it as well and the rest is history. Thankfully that paved the way for Windows 7 (which is mainly Vista tweaked) because we now had the new software for it and the new hardware, and the new drivers.
Apple was smarter with Lion and Snow Leopard... Starting the SL, they gave us the portents of what was to come. They told us that this change was NOT long in coming and that we should all be ready. They also let us all know that they will not continue to support something they consider outdated. Lion was just the next step in a long chain of steps that went from PPC to Intel/PPC to Intel only to what I imagine will be Intel 64 Bit only in the next release. At least they made the transition a lot easier to handle then a 10 year gap with the shock at the end.
If you did not make the transition along with Apple, then yes, this is a major shock and one not easy to swallow, but you can not say they did not warn you, or try to bring you along.