MSI has a little teaser at their booth at Computex. While all of their other graphics cards are displayed on the wall the upcoming GeForce GTX 780 Lightning card is covered in a clouded clear box so you really cannot see it. We do not know when MSI will be releasing this card, but it should be their best GeForce GTX 780 offering to date.
Previous MSI Lightning cards have included the following features: Yellow themed, factory overclocked, custom PCB with higher quality digital VRM, GPU Reactor, extended voltage boost with their after burner utility, LN2 BIOS switch and the Twin Frozr heatpipe cooler.
MSI did have their GeForce GTX 770 lightning on display, which may give some clues to what the GeForce GTX 780 lightning might look like and its feature set.
No word yet on when MSI will officially be announcing the GeForce GTX 780 Lightning card.