I'm anticipating making another news post tomorrow so I'll quickly summarise the latest happenings now to avoid things getting mixed up.
Some additional Sengoku Basara: Sanada Yukimura-den information from Dengeki
It seems that there's a little more information about Sengoku Basara: Sanada Yukimura-den in this week's Dengeki PlayStation magazine. BlackKite has summarised the early leaks so far here. I'm not expecting any major new reveals but if those comments are representative there might be a few interesting tidbits to read when the magazine is released.
A few more preview pictures from January's new stage play
There's also been an update on the Butai Sengoku Basara 4 Sumeragi stage play website. Katsuie (Fujita Ray), Motonari (Kotani Yoshikazu) and Tsuruhime (Kawamura Yukie) are now shown in costume. Even if there are no major changes from their previous outings as these characters it's still nice to see them dressed up.
A special Christmas offer for the Sengoku Basara 4 Sumeragi music packs
Finally, there's currently a Christmas/New Year sale running on Japan's PSN which is offering some of the Sengoku Basara 4 Sumeragi background music DLC at a discount until 4th January 2016. more specifically, if you purchase any one of the other six 'music collection' DLC packs from previous Sengoku Basara games, or the Character theme songs ~DISCO BASARA mix~ music pack, you'll receive the Classic Sengoku Basara X music collection pack for free.
For reference, this pack contains the following songs:
1. JOY RIDE (Suriagehara) CROSS.ver
2. Determination Of The Right Eye CROSS.ver
3. Ueda Battle CROSS.ver
4. Maeda Keiji's Theme CROSS.ver
5. Toyotomi Hideyoshi's Theme CROSS.ver
6. Takenaka Hanbee's Theme CROSS.ver
7. Chousokabe Motochika's Theme CROSS.ver
8. Battle Of Itsukushima CROSS.ver
9. Conquest By Military Force CROSS.ver
10. Awakening CROSS.ver