Finally I tested it:

TEST #1:
1. Reflash only rootfs
2. Activating installation from other sources + developer mode
3. Installing N9QT 9.7.8
4. Running tweak EE-1-1 (Inception + activation)
5. Running tweak HH-2-1 (PowerPack via inception = no problem)
6. Running T-3 (Coderus system-ui, tools, widgets, brightness via inception = no problem)
7. Reboot
8. Ugrade to N9QT v9.8.0 (with updated file of tweak EE that include some small changes and new hack-installer v1.0.9)
9. Running tweak EE-1 (Fixing origin via hack-installer, removing inception and installation of aegis-install and opensudo = no 1 error ! All worked like expected)
10. Reboot = Phone loaded without any problem !!!
11. Running tweak HH-2-1 (PowerPack via new aegis-install = no problem)
12. Running T-3 (Coderus system-ui = no problem)
13. Checking refhashlist and restok files, no more com.nokia.maemo/local, only com.nokia.maemo)
14. Reboot = Phone loaded without any problem !!!

TEST #2:
1. Reflash only rootfs
2. Activating installation from other sources + developer mode
3. Installing N9QT 9.8.0 (with updated file of tweak EE that include some small changes and new hack-installer v1.0.9)
4. Running tweak EE-2 (Coderus Aegis-install and opensudo = no 1 error ! All worked like expected)
5. Running tweak HH-2-1 (PowerPack via aegis-install = no problem)
6. Running T-3 (Coderus system-ui, tools, widgets, brightness via aegis-install = no problem)
7. Reboot = Phone loaded without any problem !!!

Summary:
Tweak EE and hack-installer worked just PERFECTLY !!! Origin fixed, Inception removed, patched aegis-install and opensudo installed, packages installed via new patched aegis-install. NO PROBLEMS IN BOTH TESTS, ALL WORKED LIKE EXPECTED !!!

But remember, some users have problem with installation of packages from the tweaks. Why ? No one still don't know...

Version 9.8.0 repackaged and reuploaded, update via tweak UU.
* Tweak EE - some changes. Added new hack-installer v1.0.9 (thanks to Coderus).

For open mode users:
Installation command in the tweaks NOT changed from AEGIS_FIXED_ORIGIN=com.nokia.maemo dpkg -i to aegis-dpkg -i until Coderus will confirm this post: http://talk.maemo.org/showpost.php?p...postcount=7371

PS.
TEST #3:
0. Before this test I created Tweaked backup from RR-1. This backup include opensudo (if you have installed) that should be installed via new aegis-install (hack-installer).

1. Reflash only rootfs
2. Activating installation from other sources + developer mode
3. Installing N9QT 9.8.0 (latest update with hack-installer v1.0.9)
4. Running tweak RR-2 (restore) - It installed automatically all my app, almost all my tweaks and hack-installer + opensudo. At the end it also installed aegisctl via new aegis-install and used refhashlist.pl via sudo = no problem!
5. Reboot = Phone loaded without any problem !!!
6. Running last system backup -> phone Automatically rebooted = Phone loaded without any problem !!!
7. Applying some tweaks that not included in tweak RR.
Fully restored phone

Summary:
hack-installer again worked just PERFECTLY !!!