Ok, About the Bag Overflow. The problem is happen because I don't have edit this part in the Small version. You can find the "!" by disable the XP/PvP Bar. So, you can wait the next release or doing this few easy steps to fix the bug;
...Customized\Views\MapGUI\MinimapView.xml (Line 103 to 111)
Code:
<!-- _=¯ Bag Overflow & Quest Rewards - Begin ¯=_ -->
<Button name="PendingQuestReward"
gfxid_raised="WorldmapGUI/state_icon_overflow.tga"
gfxid_pressed="WorldmapGUI/state_icon_overflow_click.tga"
gfxid_highlight="WorldmapGUI/state_icon_overflow_hover.tga"
layout_borders="Rect(25,130,0,0)"
view_tooltip_text="<localized token=GenericGUI_InventoryOverflow />"
/>
<!-- ¯=_ Bag Overflow & Quest Rewards - End _=¯ -->
Edit the line; layout_borders="Rect(25,130,0,0)" --> layout_borders="Rect(0,100,0,0)"
Now, about the Update 3. Everything sounds good, InspirationUI will be compatible. I will double-check when the update will be on the Normal Server
Thanks for your comments.