Valkyr Prime will be vaulted next, September 20th 2018-ish when Chroma Prime is introduced. On September 11th, 2018, it was announced that Cernos Prime would enter the Prime Vault and be retired from the reward tables on September 25th, 2018. For the first time in Warframe history, Saryn Prime and Valkyr Prime are leaving the Prime Vault and will be farmable for a short amount of time – how long, we don’t know. Relics that contain Valkyr Prime: Blueprint: Vaulted: Lith A2, Lith N3, Lith T2, Meso S3, Meso S6, Neo K1, Axi V7 Available: None Neuroptics: Vaulted: Lith S6, Lith T1, Meso C2, Meso D2, Meso V4, Neo N7 Available: None Chassis: Vaulted: Neo V7, Axi V5, Axi V6 Available: None Banshee Prime will be vaulted then, December 20th 2018-ish when likely Mesa Prime is introduced. These items ended up in the Prime Vault, which means they have been retired from the game's reward tables. Every year, two to three Prime Warframes are vaulted, and it is foreseen that in September 2018 Valkyr Prime will be retired. The Saryn/Valkyr Prime Vault was available from September 3, 2019 to November 19, 2019.
Any preexisting components or fully-built weapons will remain as is. Then Oberon Prime will be vaulted then, March 20th 2019-ish when likely Equinox Prime is introduced. There is currently no statement from Digital Extremes about the end of the current unvaulting, so get your primed weapons and Warframes in the next few weeks before they vanish again. With her will also be vaulted the Cernos Prime and the Venka Prime. Valkyr Prime is the prime variant of Valkyr that has a higher base armor as well as a higher energy pool.
While this unvaulting was active, the following relics were added to the drop tables: Lith C5, Lith V6, Meso N8, Neo S13, Axi S5, and Axi V9. Price: 28.5 | Trading Volume: 46 | Trading offers and prices for "Valkyr Prime Systems"
That’s something which will affect many Tenno, because Valkyr Prime is a killing machine chosen for those who prefer a more aggressive play style.