If holiday shopping or worrying about the omicron variant kept you distracted this week, you may not have noticed some of the biggest real estate stories in Dallas-Fort Worth. Developers disclosed their plans for the $750 million Four Seasons Hotel and condominium tower on Dallas’ Turtle Creek. Designed by award-winning architect Pelli Clarke Pelli, the more than 30-story high-rise will include a glass-lined circular entry court architect Fred Clarke describes as “one of the most spectacular, Instagrammable places anywhere in the world.” The lecture hall in the new 19-story Granite Park Six office tower under construction on S.H. 121 in Plano. Up in Plano, developers are dusting off the groundbreaking…