If they do decide to include the database they better hope it compresses well. My data directory for bitcoin is at 1.8GB and growing. That's only with 131340 blocks AND an empty wallet that has not yet made any transactions. Who knows how big it will be in five years

That's odd. Mine is a bit under 450 MB, and that includes some relatively large logfiles as well.
Here's what I have in the bitcoin directory:
debug.log 595 MB
blk0001.dat 262 MB
blkindex.dat 128 MB
10 other files for 28 MB
In the database directory under the bitcoin directory there are 89 files of 9.5 MB each for a total of 845 MB. Grand Total of all files: 1.858 GB
