This works for the first season of a Titan/Seven of Nine show. It could cover a lot of loose ends regarding PIC S1 - fate of Oh and Zhat Vash, Coppelius, The Artifact, Fenris Rangers, and the Romulan Free State (ranging from warlords, possible terrorists, Romulans at peace with Federation and moving towards reunification to wherabouts of tech such as Romulan holodecks). Maybe even a cameo of a grown up Kima & Lil from that Short Trek .
But with Section 31 a possibility, and a live action Janeway show in the works, and a possible PIC movie, I don’t want the early 25th century getting crowded. I also feel that its tradition for a Trek show to be set near or after the middle of the century it takes place in.
Its why I feel Seven, Shaw, Raffi, Worf, Elnor, Titan bridge crew, Titan's Trill doctor, Stargazer bridge crew, & Cadet Kestra Troi- Riker should end up on the USS Enterprise-G, and be thrown 50-60 years into the future from PIC S3. And deal with a mostly different environment from the one created by PIC. It should be influenced by the future and alternate realities from TNG/DS9/VOY, much like how AGT has influenced PIC.
- In the Federation, Cardassians are serving in Starfleet. Starships use cloaks, transphasic torpedoes, and ablative armour in their refitted fleet. There are less threats to Earth, more towards other Federation worlds (hey, we know Earth will survive to the 32nd century. May as well switch it up). Recurring characters from TNG/DS9/VOY like Nurse Ogawa have their own legacies. The descendants of the crews of DS9 and VOY has risen up the ranks; The 14 worlds that threatened to secede from the Federation over helping Romulus has actually amounted to something. Tom Paris’s holonovels are regularly run in the holodecks. Ferengi Alliance and Talarian Republic are important powers in the Alpha Quadrant the Federation interacts with. Corrupt Ferengi Daimons are an issue. Soji is still synth ambassador. The Dyson Sphere is a major Federation site.
- Klingon expansionism leads to control over various parts of Romulan Free State and Bajor. The Klingons have a renewed interest in time travel. Negh’vars are the D7/K’t’inga of the 25th century & a Vor’cha has become a notable hero ship in the vein of the Ent-D (ex.IKS Rotarran-D). The Klingons are split between members of the Federation, and joining with the Dominon & Breen.
- A Bajor that initially entered into an alliance with the Cardassians, but then spy on and then turns aggressive towards the Cardassians and later the Federation after the Federation hands over control of the wormhole -and thus protection of Bajor - to the Klingons.
- The Borg are still out there, as are the once-mentioned Fen Domar.
That setting would be enough for both a Seven show, and Worf/Raffi/Section 31 show, to work with for three seasons each.
If they wanted to freshen up the Seven show if it lasted five season, they could then move the show even further into the future and send Seven and Ent-G crew to the 29th century and expand on that era: 29th century Borg; the USS Relativity & Ducane; Na'kuhl (ENT’s alien nazis); Future Guy; Soji is still active centuries later; Andoria is destroyed by the 29th century (an idea from both ENT’s Azati Prime and the undeveloped New Frontier concept) and are moving toward Emerald Chain/ are out of the Federation; Klingons/Xindi/Ithenites/Romulans/Borg in Starfleet; the Kazon Clan Forum as suggested from a starchart in DIS S3 is active, Daniels appears.
There's no shortage of ideas for both a Seven show and a 25th century show.