What are the final transition of halo services?

I was reading something about it but am still unclear, can someone please explain this to me and what is gonna happen on March 31st?

> Our friends at Bungie recently announced that as part of Halo’s transition to 343, they will no longer be able to update game stats and player service records, host new user-generated content, or operate the Bungie Pro Service after March 31. This is part of our contract with Bungie, and a planned stage of the Halo transition process. Decisions on future and ongoing support are Microsoft’s alone, and if you have any further questions, please direct them at us, not Bungie. There has been a lot of discussion and some confusion around this transition, so we wanted to take a moment to tell you what will be affected and what’s next for Halo Waypoint.
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> Starting on April 1, we will be increasing Halo: Reach File Share capacity from 6 slots to 24 slots at no extra charge. All Halo: Reach files, including films, screenshots, game types, and maps, will continue to be fully accessible in-game, just like they are today. We’re also excited to announce that we are bringing Halo: Reach File Share access to the web version of Halo Waypoint this summer. After March 31, there will be a short period where new Halo: Reach user-generated content will not be accessible from the web.
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> While the real-time export of Halo 3 and Halo 3: ODST data to the web will not be supported on Waypoint at the time of this transition, data collection is still taking place. In fact, Halo 3 and Halo 3: ODST stats will continue to be reflected in your Halo Waypoint Career. To access your Halo Career, log on to the website, and click the drop-down arrow located to the right of your gamertag at the top of the screen. Then, click the Career Overview panel. There you will see the total number of Halo 2, Halo 3, Halo 3: ODST, Halo Wars, and Halo: Reach Campaign and Multiplayer games you’ve played throughout your entire Halo career. You can also see Games Played, Time Played, Total Kills, and Kill/Death information for each title by selecting it in the Halo Stats Summary column.
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> The most noticeable changes will include those features seen exclusively on Bungie.net, such as rendered films and Halo: Reach API keys. Those features are not included in the transition, and we do not have plans to develop similar features at this time.
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> 343’s focus for the near future is ensuring that the Halo: Reach experience is the best it can be, both in-game and on the web, expanding our Halo Waypoint services, and making Halo 4, which you can expect to hear more about in the not-so-distant future. We’re excited about continuing to evolve the Halo franchise, and we thank you for joining us on this ride.

Source: Halo Bulletin 2.2.12

So what does that mean for the nameplates on Halo: Reach?

> So what does that mean for the nameplates on Halo: Reach?

They’re either going to vanish forever, or the one you have selected will be permanently selected with no option to change it. I’m not sure.

I heard that we’ll still have our nameplates, we just wont be able to change them.

> I heard that we’ll still have our nameplates, we just wont be able to change them.

All speculation.