Will Warframe ever reintroduce elements from the old story?

Yes, it's quite possible. The developers of Warframe often like to revisit old story elements. They might bring back old story arcs to provide a sense of continuity for long - time players or to introduce new players to the rich lore that has been built up over time. For example, they could bring back characters from the past stories and expand on their storylines.

The Tenno, the Warframes, and the fall of the Orokin Empire are key elements.

Maybe they have new creative directions and want to focus on fresh content rather than revisiting the past.

Excalibur is a great choice. It's a well - balanced Warframe that can handle a variety of situations in the story. Its basic abilities are useful for combat and crowd control. For example, the Slash Dash can quickly close the distance to enemies or escape from dangerous situations. And its Radial Javelin can deal significant damage to multiple foes at once.

The key elements are his creation by the Orokin, his elemental powers, and his rediscovery by the Tenno.

I would say Mag. Mag has abilities that are very useful for story missions. Her Pull ability can draw enemies towards her or pull items from a distance. This can be used to disarm enemies or gather resources easily. Her Crush ability can deal a good amount of damage to grouped - up enemies, which often happens in story battles.

The Warframe new story may bring a whole new narrative arc. It might explore different factions in more depth, their motives and their relationships with each other. There could be moral dilemmas for the Tenno to face. New quests and missions are likely to be part of it as well. This could lead to new ways of playing the game, like perhaps new co - op mechanics or challenges. It could also introduce new types of enemies with unique abilities, forcing players to adapt their strategies. And perhaps there will be some kind of overarching goal for the Tenno to strive towards in this new story.

The story length of Warframe varies depending on how much you explore and engage. But generally, it can take a decent amount of time to fully experience.

It's hard to say for sure. The story of Warframe is complex and could have multiple interpretations. Maybe the sacrifice is just one part of a larger narrative.

I'm not sure. You might need to check the official game credits or related sources for that specific information.