It looks like HTC One will not be available on March 15th or if it will be; only a few units might possibly be distributed to retail stores because of parts shortage. As if it's not enough, HTC is actually experiencing shortage of two types of components and these are the camera module and the voice coil motor.
Initially, only an average of 1M units will be shipped in the next two months because of this shortage. Let's hope that HTC will be able to bounce back because, like it or not, there are many who are rooting for the HTC One and are actually labeling it the underdog versus Galaxy S 4 and other leading phones in the market.
This can actually be a good move by the Taiwanese company because they would not want to be overshadowed by the possible success of the Galaxy S 4 launch on March 14th. Introducing the HTC One at a later date will make it possible for them to gather more steam. This is HTC's final chance to redeem their brand and they have to make it right and timing is also quite important.
The Exynos 5 Octa was confirmed to be LTE-enabled and that it supports all 20 bands. This bit of info was taken from the SamsungExynos page on their Twitter account. This means that it can also do what the Snapdragon 600 (Qualcomm) is capable of doing. However, there are also reports (fom SamMobile) that the reason why the Galaxy S 4 came in two variants is that Samsung was unable to deliver the Exynos 5 Octa in time for the S 4 launch.
Furthermore, Samsung actually confirmed that they have just started mass producing the famed chip after the first quarter. According to the reports, only about 30% of the total Galaxy S 4 production have Exynos 5 Octa in their hardware and many are hoping for more Exynos variants to be distributed in the near future.