Hi - any info or advice on this wouldbe appreciated!

Our daughter will be having a psych educational assessment in one months time. She was assessed 4 years ago, had a GAI score of 148 on the WISC IV, and it confirmed that she is very dyslexic. She is very spatial and verbal, and will be 14y 2 m at the time of assessment. The main purpose of the second assessment is to document LDs in anticipation of needing accomodations for standard written tests.

My question is whether we should move forward with a WISC V or stay with the WISC IV. I really like the idea of apples to apples data between the assessments, but perhaps the changes in the WISC V are ones better suited to current needs. I also live in a country that does not yet have extended norms for the WISC V - would this be an issue because of her age?

I am finding very little good info on this online - any ideas or info would be very helpful.