I came across this little bit of information via a Jezebel article that did a round-up of SDCC news.
I think it is interesting that Spider-Woman (Jessica Drew) is getting a solo release because it might hint at Spider-Woman being positioned to have some sort of connection to/role in the MCU.
Here is my random (wishful) speculation as to why that might happen:
1. Marvel Studios doesn't currently own the rights to Spider-Man (Sony does), they do own the rights to Spider-Woman because she is not tied very closely to Spider-Man other than a shared Spider hyphenated superhero name
2. Spider-Woman made an appearance in the Alias comic which stars Jessica Jones
3. Jessica Jones is going to have a series on Netflix
4. Spider-Woman had a series where she is an agent a S.W.O.R.D. which is a sister organization to S.H.I.E.L.D. that deals with extraterrestrial threats.
5. GotG will introduce the Kree and other extraterrestrial threats
6. There was some speculation that Skye might be Jessica Drew (Spider-Woman) but the concensus is that she is most likely an Inhuman and the blue alien in T.A.H.I.T.I. was most likely a Kree.
7. Spider-Woman was also a member of the New Avengers (sort of, it was a Skrull for a chunk of the titles run)
It might be an interesting move for Marvel to do because they could have a 'Spidey' type character which would provide some level of non-comic fan recognition, Spider-Woman could be introduced in the Jessica Jones series, cross-over to represent S.W.O.R.D. on Agents of S.H.I.E.L.D., and even leap into movies with extraterrestrial threats like GotG 2 or Avengers 3 (if it is the one where Thanos plays the main villain).
All random speculation, but something to maybe add to the fan hope chest along with Black Panther and Captain Marvel movies.
Either way, glad this character is getting a solo title.