[texhax] A LaTeX interpreter to turn LaTeX into more LaTeX/TeX ?

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Greetings all (apologies if double-posted),

I am currently looking at ways of integrating the functionality of the  
Biblatex package (a natbib/jurabib replacement) into the latex2rtf  
project.  Specifically, I would like to take advantage of the powerful  
bibliography and citation formatting capacities that Biblatex offers,  
without re-implementing the entire Biblatex package in C (which is how  
latex2rtf currently emulates natbib and jurabib capabilities).

What I would like to do is be able to run a LaTeX interpreter on my  
TeX file, but instead of producing a PDF/DVI output, it would produce  
another LaTeX output, which I can then capture in order to extract the  
formatted citations and the bibliography.  As things currently stand,  
Biblatex does not produce a file with a formatted bibliography or  
citations, but produces all of these on the fly, during the process of  
producing the PDF/DVI output.  As a result, there are no left over  
aux-type files that contain the information that I need.

Basically, what I need is some way to complete "expand" a typical  
LaTeX file into something more basic, even raw TeX, if that were the  
only option.  So far, however, I have not found anything.  All of the  
engines I am familiar with produce some other kind of output (PDF,  
DVI, HTML, etc.).  I've spend a good amount of time search online and  
reading manuals, and so far have come up empty-handed.

Is what I am looking for possible?  Thanks for any help you can offer.
-Erik Norvelle