When making Flask 1.0, could you remove some old APIs?

• deprecate flask.ext, see Deprecate flask.ext #1484 and Deprecate flask.ext and create migration tool to flask_* #1135
• remove modules, see Remove deprecated old module, and start deprecating request.json. #1204 and Disable modules by default #861
• deprecate *_session()
• Allow all objects in JSON, see Can't jsonify list object #673, Should jsonify() throw an exception when provided a list? #1177, Review JSON Security #248, jsonify doesn't accept a list #170, Can jsonify return array? #510
• deprecate request.json, see Deprecate request.json property #1206 and Remove deprecated old module, and start deprecating request.json. #1204
• remove support for name guessing from send_file Bug in send_file with temp files #1427