oreofox
Explorer
Maybe! It was an honest question on my part. I haven't bought the PDF and haven't had time to read UA yet.
July's UA is a reprint of the races from the Wayfarer's Guide. So, you can get that for free if that's all you would want from this. Most of the Wayfarer's Guide seems to be stuff about Sharn and the world (there's about 176 pages worth of information in the Guide).
D&D has a history of reprinting things within the same edition. They've done it in 5th (Xanathar's, Mordenkainen's, and I think Volo's all had stuff reprinted from previous books, mostly the adventures). I don't know about 4th edition, but 3rd had tons of reprints (such as about 5 different entries for Thri-kreen at least), there were a number in 2nd edition as well. There's a good chance a few things will be reprinted from this pdf.
And like I said earlier, I have no problem purchasing this. If it helps more Eberron and other settings get things made for them, then it will be well worth it.