Some of those games underperformed but they were important to keep 3DS relevant in the market and in particular in retail stores, as Nintendo aimed at maintaining active this stream of revenues. Indeed, 3DS 2017 hardware sales are well above anyone's expectations.
Also, many of those games will keep selling during holidays as Pokémon aside 3DS doesn't have much. For example, I can totally see Pikmin selling above 200k when it's all said and done (on par with Pikmin 3). Mario Sport and Yoshi should have legs too.
Then, there were also overperformances. For example, Dragon Ball Heroes: Ultimate Mission X is on track to outsell the previous entry. Same for the new Pro Baseball Famista.
Late entries at 3DS life will be hard outselling other from years ago. These 3DS games will sell enough to give additional income to Nintendo and third parties, nothing more.
2013 CY {2012.12.31 - 2013.12.29} 024. [3DS] Dragon Ball Heroes: Ultimate Mission <TBL> (Bandai Namco Games) {2013.02.28} (¥5.524) - 276.349 / 276.349
2014 CY {2013.12.30 - 2014.12.28} 359. [3DS] Dragon Ball Heroes: Ultimate Mission <TBL> (Bandai Namco Games) {2013.02.28} (¥5.524) - 13.924 / 290.274
2015 CY {2014.12.29 - 2016.01.03} 000. [3DS] Dragon Ball Heroes: Ultimate Mission <TBL> (Bandai Namco Games) {2013.02.28} (¥5.524) - 345 / 290.619
2016 CY {2016.01.04 - 2017.01.01} 000. [3DS] Dragon Ball Heroes: Ultimate Mission <TBL> (Bandai Namco Games) {2013.02.28} (¥5.524) - 100 / 290.719
2014 CY {2013.12.30 - 2014.12.28} 039. [3DS] Dragon Ball Heroes: Ultimate Mission 2 <TBL> (Bandai Namco Games) {2014.08.07} (¥5.690) - 176.382 / 176.382
2015 CY {2014.12.29 - 2016.01.03} 073. [3DS] Dragon Ball Heroes: Ultimate Mission 2 <TBL> (Bandai Namco Games) {2014.08.07} (¥5.690) - 100.966 / 277.348
2016 CY {2016.01.04 - 2017.01.01} 138. [3DS] Dragon Ball Heroes: Ultimate Mission 2 <TBL> (Bandai Namco Games) {2014.08.07} (¥5.690) - 50.940 / 328.288
2015 CY {2014.12.29 - 2016.01.03} 926. [3DS] Dragon Ball: Extreme Heroes W Pack {Dragon Ball Heroes: Ultimate Mission \ Dragon Ball Heroes: Ultimate Mission 2} <TBL> (Bandai Namco Games) {2015.12.17} (¥10.280) - 1.715 / 1.715
2013 CY {2012.12.31 - 2013.12.29} 043. [WIU] Pikmin 3 <ACT> (Nintendo) {2013.07.13} (¥5.700) - 212.311 / 212.311
2014 CY {2013.12.30 - 2014.12.28} 174. [WIU] Pikmin 3 <ACT> (Nintendo) {2013.07.13} (¥5.700) - 42.959 / 255.270
2015 CY {2014.12.29 - 2016.01.03} 253. [WIU] Pikmin 3 <ACT> (Nintendo) {2013.07.13} (¥5.700) - 21.265 / 276.535
2016 CY {2016.01.04 - 2017.01.01} 235. [WIU] Pikmin 3 <ACT> (Nintendo) {2013.07.13} (¥5.700) - 20.961 / 297.496