We’ve been keeping our ears to the floor for news on what Microsoft has in store for the E3 trade show, which kicks off early next week, and we’re finally starting to hear some mumblings. According to winrumors, Microsoft is finalizing media partnerships and plans to debut a new Xbox LIVE subscription TV service — currently being called “Diamond” — during its press conference. Xbox LIVE Diamond should allow Xbox LIVE customers to watch streaming television provided by Microsoft’s content partners, although it’s currently unclear how much the subscription will cost. The Redmond-based company has also recently trademarked “Fusion Vault, “Fusion Genesis,” and “Fusion Sentient,” and it reportedly has a music and video discovery service dubbed “Ventura” in the works, too. We’ll be reporting from E3 next week in Los Angeles where we’re sure to hear plenty more.