The TNE Regency Sourcebook only contains subsectors C, D, G, and H of the Trojan Reaches. And the "old" data is 1117, which is post-Aslan invasion.
The full subsector was done by DGP in TD20, but that is also set in 1117, and therefore post-invasion.
The only pre-invasion data I know of was published in the "Third Imperium" newletter which I have seen, but do not own. While some may claim that it is a fanzine, and therefore non-canonical, I will point out that every UWP I have seen that was published in Third Imperium appears unchanged in TD20. The only difference is alegiance codes to reflect the Aslan expansion.
Finally, subsectors B and C were detailed in the Leviathan adventure (Adv4, I think). Those maps and UWPs match the other sources.
Those are the only sources of information for the Trojan Reaches of which I am aware. There is an off-chance that an early TD had pre-Rebellion data for the Trojan Reaches, but I have never seen or heard of such. (Apparently Deneb was done multiple times.)
As an aside, my
Florian page has the Florian League shown for the
1100 timeframe. My page was based on the various sources given above.