Every video gaming company heading into E3 has a point to prove, they always do. There's always a narrative there, and as the grandest public stage, E3 is where Microsoft, Nintendo, Sony et al can shake up public perception, win over new fans and - should it all go wrong - alienate existing ones.
E3 2015 may not be as important as 2013's was (prior to the release of the PS4 and Xbox One) but it is as important as last year's show – which should have cemented the newest generation of consoles.
In The Witcher 3: Wild Hunt and Bloodborne we finally have the first games that feel truly next-gen and justify the still young systems, but the list they occupy must grow longer – and quickly. That is the broad aim for Sony and Microsoft, while Nintendo – as always – exist in their own bubble.