While rumors have been stirring for some time now, The Telegraph claims that Disney indeed will buy Pixar pending a Pixar board approval meeting tomorrow.
The buy-out would be an "all-share deal" which would make Steve Jobs the single largest shareholder of Disney (approximately 6-7% of total shares).
Businessweek speculates that Jobs may try to become more actively involved in the Disney board of directors. Steve Jobs, of course, also keeps busy as the CEO of Apple Computer.