Hi Niveda,
Most of the view capabilities are covered in these 3 views.
Attribute views - BW characteristics, Dimension or master data.
Analytic views - These are fact tables surrounded by dimensions, calculated or restricted measures. Info Cubes or Info Sets in BW.
Calculation Views - For a complex business requirement where we have combination of tables, attribute, analytic views.. We can have multiple analytic views here.. This again can be created in Graphical(Dimension, Star Join) or Scripted (Helps in using several SQL Script functions that is not available in Graphical).
We have 3 specific Engines to process these views. I don’t see a need for having a new View when this covers major part of Data Modeling.
SP10 has some features added to the existing views e.g new nodes like Ranked sets, data lineage, Spatial Data Preview, etc..
-Avinash