Thanks for the ping!
This is fantastic news. This sentence deserves its own paragraph because it's the most important takeaway from this extension.
I've been having a few charged conversations about this over on Twitter in the last few days and nobody could really explain why they couldn't just make the set last longer and have it overlap with other sets. Sure we'd still get a similar SG provision per set that is way less than what JP could get, but at least people who only had an interest in some but not all sets could choose which set to use their SG on with a little more freedom which is way better than spending 3 months building up SG and not being able to use it on Fallen Heroes because it departed so quickly.
I don't believe those conversations (which @play_pso2 was included in the recipient list for much of) are the cause of this extension though. Long before those, numerous people on this forum have said that 8 weeks is an absurdly short time for an SG set that is two JP SG scratch sets' worth totalling 52 weeks of JP SG content. Even now we have much of the JP SG provision (and what we don't get, Mission Pass with premium largely makes up for), the duration deficiency was a problem I am quite glad they have addressed now.
I'm curious as to why this wasn't announced, because it's an issue quite a few people had with the existing SG scratch setup. But since it wasn't, it's a great spot on @Archetype-Luna's part.
We can still expect a new SG scratch to overlap the present one in September, I think. I'm more curious about what this means for the "Limited time SG swap shop" which presumably would have ended in September. Maybe that'll still switch over to a potential new September set, or maybe it'll be extended as well.