New
#70
The 32bit will come in about 2.8-3.2gb at the largest while the 64bit can climb to just over 4gb on the drive when downloaded separately in ISO form. Note the update will have to be universal for both flavors in all editions which would be Home and Pro expected while the Education and certainly Enterprise editions will likely each see their own form of update.
The download as update for the 64bit would still tend to be 3.5gb or larger as a general rule of thought plus considering it needing to be an All in One type update.