Heydrich was dismissed from the Navy in 1931, how would his continuing service in the German Navy have impacted on the OTL.
here's some background from Wikipedia
In 1926 he advanced to the rank of ensign (Leutnant zur See) and was assigned as a signals officer on the battleship SMS Schleswig-Holstein, the flagship of Germany's North Sea Fleet. With the promotion came greater recognition. He received good evaluations from his superiors and had few problems with other crewmen. He was promoted on 1 July 1928 to the rank of sub-lieutenant (Oberleutnant zur See). The increased rank fuelled his ambition and arrogance.[21]
Heydrich became notorious for his countless affairs. In December 1930 he attended a rowing-club ball and met Lina von Osten. They became romantically involved and soon announced their engagement. Lina was already a Nazi Party follower; she had attended her first rally in 1929.[22] In 1931 Heydrich was charged with "conduct unbecoming to an officer and gentleman" for breaking an engagement promise to a woman he had known for six months before the von Osten engagement.[23] Admiral Erich Raeder dismissed Heydrich from the navy that April. The dismissal devastated Heydrich, who found himself without career prospects. He received severance pay of 200 Reichsmarks (equivalent to €640 in 2009) a month for the next two years.[24] He married Lina in December 1931.[25
here's some background from Wikipedia
In 1926 he advanced to the rank of ensign (Leutnant zur See) and was assigned as a signals officer on the battleship SMS Schleswig-Holstein, the flagship of Germany's North Sea Fleet. With the promotion came greater recognition. He received good evaluations from his superiors and had few problems with other crewmen. He was promoted on 1 July 1928 to the rank of sub-lieutenant (Oberleutnant zur See). The increased rank fuelled his ambition and arrogance.[21]
Heydrich became notorious for his countless affairs. In December 1930 he attended a rowing-club ball and met Lina von Osten. They became romantically involved and soon announced their engagement. Lina was already a Nazi Party follower; she had attended her first rally in 1929.[22] In 1931 Heydrich was charged with "conduct unbecoming to an officer and gentleman" for breaking an engagement promise to a woman he had known for six months before the von Osten engagement.[23] Admiral Erich Raeder dismissed Heydrich from the navy that April. The dismissal devastated Heydrich, who found himself without career prospects. He received severance pay of 200 Reichsmarks (equivalent to €640 in 2009) a month for the next two years.[24] He married Lina in December 1931.[25