Yes. The only way to get the full 5.7.893 with wedtop is to do the steps I said.
Here is a link to all the thread.
Easily Upgrade To 5.7.893, Keep Root And Webtop - RootzWiki
http://www.mediafire.com/file/asfe28a9pkon4pc/Blur_Version.5.5.893mr1.XT875.Verizon.en.US.zip
http://www.mediafire.com/file/7mvv1i829wn9qix/Blur_Version.5.6.893-5.7.893.XT875.Verizon.en.US.zip
http://www.mediafire.com/file/ah4t6ruiksupuun/Blur_Version.5.5.886.XT875.Verizon.en.US.zip
webtop hack
http://forum.xda-developers.com/attachment.php?attachmentid=734829&d=1317314289
These steps were taken from a 2defmouze at rootzwiki post number 194
Follow these steps.
1. Used One-Click Fastboot Restore and Root for BIONIC to flash back to stock 5.5.866. Booted up. Used R3L3AS3DRoot v2 to Root and apply ForeverRoot script.
2. Installed Bootsrap app. Booted into CWR.
3. In CWR Went to Install from SD -> FULL CWR 893 UPDATE
FULL_CWR_893_update.zip
4. Rebooted. Checked System to verify that I was on 5.5.893. Checked that Superuser was still present so I knew I had root.
5. Redownloaded and installed Root Explorer. Used it to check the mount_ext3.sh file to verify that the ForeverRoot lines were still present. The last line "chmod 4755 /system/app/Superuser.apk" was NOT there, so I added it back in. Saved the file and exited.
6. Power Down. Boot into Stock Recovery. Installed from sd card the file titled Blur_Version.5.5.893mr1.XT875.Verizon.en.US
7. Reboot. As in Step 4, verified system was now on 5.6.893, and that Superuser still present and functioning. At this point took note that Webtop Version read Unavailable.
8. Power Down. Boot into Stock Recovery. Installed from sd card the file titled Blur_Version.5.6.893-5.7.893.XT875.Verizon.en.US
9. Reboot. As in Step 4, verified system was now on 5.7.893, and that Superuser still present and functioning. Webtop still Unavailable.
10. Power Down. Used One-Click Fastboot Restore and Root for BIONIC to flash back to stock 5.5.866. Used R3L3AS3DRoot v2 to Root and apply ForeverRoot script.
11. Rebooted. At this point not even sure why.. just felt like a good idea (lol).
12. Power Down. Boot into Stock Recovery. Installed from sd card the file from top of first page of this thread where it says: Flash stock recovery of full Blur_Version.5.5.886-5.7.893.XT875.Verizon.en.US
13. Reboot. Verified system was now on 5.7.893 with updated Baseband Version, and that Superuser still present and functioning. Webtop IS BACK
14. flash webtop hack