I do a ton of statistics on the server and at every major update I post the statistics for player retention, here they are. Note, the number for players who never made it out of spawn is not much to go off because many players afk or logout in spawn.
New 1.11 Numbers:
55.69% of players made it out of spawn.
35.57% of players never made it out of spawn.
8.74% of players never made it out of the new player room.
As you can see, players are much more likely to at least get out of the new player room and play the game, however, there still is literally 4905 players that never made it out of the new player room.
Compared to before:
On 1.10:
57% of players made it out of spawn.
33% of players never made it out of spawn.
10% of players never made it out of the new player room.
On 1.9:
56% of players made it out of spawn.
33% of players never made it out of spawn.
11% of players never made it out of the new player room.
On 1.8:
42% of players made it out of spawn.
37% of players never made it out of spawn.
21% of players never made it out of the new player room.