Yep, it is a tiny bit of a disappointment that the Guardian is not on sale during IAE's MISC day. But it is so heavily hinted that it's due to be released with 4.0 that they might as well just say so.
CIG probably think they'll get more revenue in the medium term by selling it away from IAE, when there's already enough ships to tempt us to part with our money. No real need to have a hot new ship compete for business against the hull-limited ships, starlancers, the medical terrapin and the Anvil Paladin. I probably missed some. So disappointing but it makes plenty of sense.